数1のx,yについての二次式の因数分解についての質問です！ 写真のようにｘについて降べきの順に整理するときに最初のｘ²だけ省くのか分かりません。 この方法でやれば因数分解がうまくいくことは分かるんですが、あんまり納得できていないです 分かる方がいれば説明お願いしま... 続きを読む

:) x² + 4x9² 39 x(x+4y 解説 白チャートで で視聴できる 書籍ご購入の 追加 白チャー ■基礎固 基本的な 解説して にも配 な生徒で 例題は、 スモール 進めるこ タ どこでも ■共通テン 巻末の実 る長文問 エスビュ 書をタブレッ いつでも、と 38 ① 23 1919 準 18x,yについての2次式の因数分解 次の式を因数分解せよ。 (1)x+3.xy+2y²-5x-7y+6 は、大学入学共通テストの準備・対策向きの問題であることを示す。 (2) 2x²-5xy-3y²-x+10y-3 CHART & GUIDE について降べきの順に整理する。 定数項となる」の2次式を因数分解する。 xの2次式とみて、たすきがけの図式を完成させる。 xについての2次式の因数分解 1つの文字について整理して, たすきがけ (1) +3xy+2y^²-5x-7y+6 =x2+(3y-5)x+(2y²-7y+6) =x+(3y-5)x+(y-2) (2y-3) ={x+(y-2)}{x+(2y-3)} 6 =(x+y-2)(x+2y-3) 第 2 → 4 B 1 -3 → -3 2 6 -7 (2) 2x²-5xy-3y²-x+10y-3 A 1 =2x²-(5y+1)x-(3y²-10y+3) =2x²-(5y+1)x-(y-3)(3y-1) 3 2 注意 解答では、xについて整理し Z て <<<基本例題 14, 標準例題 17 日 .. y-2 y-2 2y-3 3y-5 ={x-(3y-1)}{2x+(y-3)} =(x-3y+1)(2x+y-3) -3 → -9 01 -(3y-1) → -6y+2 X -1--1 y-3 3-10 ◆ x について整理。 たすきがけ A DO... ◆ たすきがけ B (*) たすきがけ -5y-1 ← x について整理。 ★たすきがけ ⑩ なお,たすきがけ ⑩が考 えやすくなるように(*) ではxの1次の項を y-3 +(-5-1)xと書いてお くのもよい。 ズーム UP review 因数分解の基本を振り返ろう! 例題17を振り返ろう! 多くの文字を含む式の因数分解では, 次数が最低の文字について整理しましょう。 x2+3xy+2y2-5x-7y+6 は, xについて2次,yについても2次である。 よって,どちらの文字について整理してもよいが, -x の項の係数は 1 2 の項の係数は 2 2 次の項の係数が簡単なx について整理すると x2+3xy+2y²-5x-7y+6=x²+(3y-5)x+(2y²-7y+6) 例題14を振り返ろう! Ax'+Bx+Cの因数分解では, たすきがけ を利用しましょう。 acx2+(ad+bc)x+bd=(ax+b)(cx+d) 「2y²-7y+6の因数分解 の係数2を2数の積に分解。 2 定数項6を2数の積に分解。 3 たすきに掛けて, その和が -7 となるものを見つける。 x 1 -6→-12 -1 → -1 6 -13 -4 2 01 2 2 x2+(3y-5)x+(y-2)(2y-3) の因数分解 1 x²の係数1を2数の積に分解。 2 定数項 (-2)(2x-3) を2つの積に分解。 -2 -3 → 6 ← 定数項6を2数 (1) (6) と分解した場合 -3 -7 定数項62数(-2)(−3) と分解した場合 ↑xについて整理しているから, は数と考える。 39 1章 3 因数分解

これは主題図ですか？？教えてください！

あん ばしょ ない なん ひ Fil 避難場所案内図 (さいがいのときに みんなが にげるところ) 折尾高校入口 大 ① 折尾西市民センター ②折尾西小学校 大二丁目 折尾駅入口 0m 100m 200m 日吉台団地入口 大 ③ 大膳公民館 AM /500m 36185 日吉台二丁目 木 ① 中ノ谷公園、 199 総合庁舎前 3 n 自由ヶ丘 ① 自由ヶ丘高等学校 199 [火] 2 ⑦則松市民センター 松二丁目 折尾四丁目 折尾駅 現在地 折尾駅北口 W3307 ⑥八幡西勤労 大 ⑧則松小学校 九州女子大前 青少年ホーム 東折尾町 16163 折尾 ⑩ 九州女子大学・ 産業医科大学入口 Killia ④折尾西公民館 VE 九州女子短期大学 ⑤九州朝鮮中高級学校 ¥281 折尾西公園 And |光明二丁目西 Evacuation Site Guide Map OS 避難地点指引图 光明二丁目 長崎町 医生ヶ丘 13 折尾スポーツセンターー 大浦2 中洲2 ALINT 八幡西消防署 折尾分署 八幡西区役所 (折尾出張所 楠木一丁目 ⑨折尾東市民センター 2 折尾警察署前 Finde ⑩折尾東小学校 ② 中須公園

見にくいですが、1.の答え合わせと、2の回答を教えて下さい。

1 Complete the sentences with a, an, the or no article (-). 1 Is there a hotel? my bus to the airport from 2 Our centre is equipped with the latest facilities. 3 How long have you been learning to speak ____ Chinese? 4 Could I have a cup of tea, please? 5 Sorry, but he isn't at _____ work today. 6 A main exhibition centre is over there. 7 He's a person I mentioned during dinner. You should meet him. 8 Is this an information you wanted? 9 What time's my flight to the USA? 10 I normally travel by a bicycle. 11 I love the vegetarian food. 12 The greatest innovation of twentieth century was the Internet. 13 Are we meeting again on the Thursday? 14 Hi. My name's Elaine Keevey and I'm an accountant. 2 Read eight rules and guidelines for staff working at a conference centre. Add the correct article(s). the 1 All staff must be polite and helpful to trade fair delegates. 2 Remember to wear ID badge at all times. the 3 Check visitors' names on registration list when they enter main venue. 4 If you see visitor who looks lost, immediately offer to help. 5 Staff not wearing uniform will be sent home. 6 Exhibition centre is always closed to visitors on Mondays. 7 For information, direct visitors to Central Registration Desk. 8 If you travel by car, please park in Staff Car Park.

自分の回答があっているか不安なので、４第答えて頂きたいです。 自分の回答はこちらには見にくくなってしまうため書いていません。

Working with words 1 Complete the review of a hotel. Use the answers to complete the puzzle and find the European city where the hotel is located. HOTEL REVIEWS This first-class hotel and conference centre welcomes guests from all over the world. Its 1 facilities are second to none. There are 300 en-suite rooms and five apartment suites. For business guests, it has ten meetings rooms, two of which are big enough to be used as halls. 2 The hotel can also organize events such as guided 3 around the town centre for conference 4 and hotel guests who enjoy a bit of 5 For food-lovers, the four-star restaurant serves regional 6 every evening. All in all, this is a top-class for business and for pleasure. 7 6 1 A fa 0 il i t 1 e S 2 Replace the words in italics (1-8) with the phrases from the list. Add a pronoun if necessary. you hotel? look around meet up with show someone around 3 freshen up eat out pick someone up check in drop someone off Pedro It's difficult to park here. Can I stop and leave drop you off in front of the 1 Sabrina Sure, I'll register 2 and then I'd like to have a wash, and change my clothes 3 Pedro If you like, tonight I can give you a tour of 4 the old city. We could by eat in a restaurant 5 the port. Sabrina That sounds great! I'd rather walk about and See 6 the city than stay in my hotel room. Pedro I'll collect you 7 8 8.30 p.m. We'll see Alberto and Maite in the main square. at Business communication 1 Put the words in the correct order to make expressions. 1 meet person / it's / nice / to / you / in It's nice to meet you in person 2 have / did / finding / you/ any / trouble / us? 3 worry / signing / don't / about / in 4 through / programme / I'll / run / today's 5 this my / come / way / to / office 6 need building / you'll / this / enter / badge/ the / to 7 reception / sure / make / in / at / you / sign 2 Raymond Roberts has an appointment with Janet Rose. He has just arrived at HBG premises. Complete their conversation with the phrases from the list. let me take your bag can I get you a drink Welcome to HBG publishing I thought you could catch up again how was your journey You'll need this Make sure you 1 Raymond Good morning, I'm here to see Janet Rose. Janet Hello, I'm Janet. ¹ Welcome to HBG publishing. Raymond It's nice to meet you in person. Janet Likewise. So, 2 Raymond Well, there were traffic jams on the motorway and I got a little bit lost in the industrial park. Janet Don't worry. That happens to everyone. Anyway, 3 - I'll store it in my office. Raymond I'll hang on to it if you don't mind. It's got all my stuff in it. Janet Well, if you change your mind just tell me. And 4 Raymond Thanks. I'll have a cup of tea, please. Janet Sure, I'll just get that for you in a second. First of all, I'll run through the schedule. 5 start by meeting Karen Rankin this morning and then we'll 6 at lunchtime. Raymond OK. And will I see Malcolm Briscoe? Janet Yes, in fact he's joining us for lunch. One other thing. security pass. at all times. 7 It's your 8 wear it

白チャ 重複順列 (2)なんで最終的には2の3条=8になるのですか 詳しくお願いします

LIBRARY 基礎 例題 14 (1)1,2,3,4,5の5種類の数字を用いて2桁の整数はいく できるか。ただし, 同じ数字を繰り返し用いてもよい。 (2) 集合 {1,2,3} の部分集合の個数を求めよ。 CHART & GUIDE ■解答 重複順列n" 1個目 2個目 異なるn個から重複を許してr個取って並 (1) 2桁の整数を□□として, ｢2つの 口の中に, 5個の数字から重複を許し て2個並べる」と考える。 (2) 1,2,3のそれぞれが, 部分集合に 属するか, 属さないかの2通りある。 . n通り × n通り× 積の注

因数分解なのですが最初の降べきの順に直すところが分かりません。細かく式書いて教えて欲しいです🙇‍♀️

発展例題 250 次の式を因数分解せよ。 (1) a²(b+c)+ b²(c+a)+c²(a+b)+2abc (+12x+1+ (2) a²(b-c)+b²(c-a)+c²(a−b) CHARI & GUIDE N 基礎例題 18, 解答 1) (5)=(b+c) a²+(b²+2bc+c²) a+b²c+bc² =(b+c)a²+(b+c)²a+bc(b+c) ¹) 1) =(b+c){a²+(b+c)a+bc}2) ① a について整理する。 α 以外の文字 6, c は数として扱う。 ② Oa²+□+△の形となる。 公式やたすきがけを利用する。 数が同じ場合 多くの文字を含む式の因数分解 次数が同じ場合 まず、 1つの文字について整理す =(b+c)(a+b)(a+c) =(a+b)(b+c) (c+a) 2) (5)=(b-c)a²-(b²-c²) a+b²c-bc² =(b-c)(a−b)(a-c) 2) =-(a-b)(b-c) (c-a) 発展例題 21 FT_3>85TS 1) b+cが共通因数 (+)=(1+2) 掛けて bc, (x(1+2x)}{x+b+c となる2数 ←輪環の順(p.23)に。 ++税) デストー =(b-c)a²-(b+c)(b-c) a+bc(b-c) 3)+²x)) {x\ 2) 3) + ³x)} (x² - ( =(b-c){a^²-(b+c)a+bc}* 8+50 複雑な 発 bc (1 ( 3) b-c が共通 (+) (4) 掛けてbc., b-cとなる b-c -a-c=-(c- ←輪環の順に。 (8+x) (+3)=(8+1)(1+1)= within Lecture 対称式と交代式 s)(6+) 上の例題の (1) のように, a,b,cのうちのどの2つの文字を入れ替えても、も じになる式を, 3文字の対称式という。 また, (2) のように, a,b,cのうちの 文字を入れ替えても, もとの式と符号だけが変わる式を, 3文字の交代式とい 3文字の対称式、交代式の因数分解については CRE

どこが間違ってるかわかりません。わかる方いたらお願いします。

X 7. (friendly) dogs/lions 0/3 Dogs are more friendly than lions. X

[ ]内の語を使って下線部を埋めて会話を完成させるという問題なのですが、よく分からなかったので教えてください🙇🏻‍♀️❕

A: Didn't you think that the last question was difficult? B: It was. I could solve it because GUIDE I when I arrive to sch [ do / workbook ] DO tht to I 1

(4)を訳したいのですが、文構造が分からずうまく訳せません、。どなたか解説をお願いします。

lo One fast-food company is well known in Japan for its extensive worker manual and the sales talk it covers. From the book, workers learn how to greet a customer, how to bow, how to take an order, pack a bag and give correct change. 5 Customers find the same nice service in all the franchised outlets, which contributes to both customer satisfaction and *corporate profits. One day, a mother came into one of these restaurants, and while she was ordering at the counter, her baby grabbed an 10 employee's hat and began to play with it. He was surprised and embarrassed. He could not concentrate on what the customer (2) was saying and had to ask her to repeat her order twice. He knew he was losing his dignity as a company representative by having an infant tearing up part of his uniform, and he wanted to 15 take it back, but at the same time he didn't know what to say or do. He stood there ( 3 ) until the mother *retrieved the hat and gave it back to him. He put it on again, resumed his normal calm attitude, and took her order efficiently as if nothing had happened. But everyone in the restaurant could see that a 20 one-year-old child had the power to bring the operation to a halt and must have wondered about it. What was the problem here? Simply put, the manual, detailed as it may be, fails to cover what to do in a situation where a young child steals part of your uniform. And without the manual to guide his behavior, the employee was lost. This is a trivial example of a very serious problem in Japan: the inability to 48

物理の自由落下はでてきた答えの少数第一を四捨五入しているのはどうしてですか？