この問題がどうやってとくのか回答を見てもしっくりきませんどうやってとけばいいのか教えてください

里勝をもつ条件 3次方程式(a-1)x2+(4-a)x-4=0が2重解をもつように, 実数の 定数αの値を定めよ。 基本 61 CHART & SOLUTION 3次方程式の問題 因数分解して (1次式)×(2次式) へもち込む x=1 を代入すると成り立つから, 与えられた方程式は (x-1)g(x)=0[g(x)は2次式] の形となる。 0 ここで, 「2重解をもつ」のは次の2通りで、 場合分けが必要。 [1] 2次方程式g(x)=0が1でない重解をもつ。 [2]x=1が2重解 - 解答 → -6.655 f(x)=x+(a-1)x2+(4-a)x-4 とすると g(x)=0の解の1つが1で、他の解は1でない。 f(1)=1+(a-1)・12+(4-α) ・ 1-4=0+dps- (p +alth) = ① ゆえに, 方程式は したがって よって, f(x) は x-1 を因数にもつから f(x)=(x-1)(x2+ax+4) (x-1)(x2+ax+4)= 0 x-1=0 または x2+ax+4=0 この3次方程式が2重解をもつ条件は,次の [1] または [2] が成り立つことである。 [1] x2+ax+4=0が1でない重解をもつ。 判別式をDとすると ----- D = 0 かつ 12+α・1+4=a+5≠0 D=α²-16=(a+4) (a-4) PRACTICE 63 ③ 3 D=0 とすると α = ±4 これは α+5≠ 0 を満たす。 [2] x2+ax+4=0の1つの解が1, 他の解が1でない。 12+α・1+4=0 x=1 が解であるから よって ゆえに a=-5 このとき よって これを解いて x=1,4 (土) したがって,他の解が1でないから適する。 [1], [2] から 求める定数 α の値は a+5=0 x2-5x+4=0 (x-1)(x-4)=0 3次方程式 3-² Hold1a-1 4-a a=±4, -5 0 FOX 1 a a 4 0 20 別解 次数が最低の文字 α について整理する方針で, 因数分解してもよい。 x-x2+4x-4+α (x2-x) -4 [1 4 =(x-1)(x2+4)+αx(x-1) =(x-1)(x2+ax+4) inf次のように考えても よい。 [2] x2+ax+4=0 の解が 1とβ (1) のとき, 解 と係数の関係から 1+β=-α, 1・β=4 β=4 は適する。 このとき α=-5 10 高次方程式

ビジョンクエストhopeのlesson3の問題です 解答お願いします🙇‍♂️ もし少しお時間があれば訳も教えていただけると幸いです🙇‍♂️

Try it out! modo Tits erovel [ ]内の語を使って、会話を完成させましょう。 1. "What were you doing when Japan won the game last night?" " SOVET Actually, I'm not a big fan of soccer." [take] 2. "When did he join the Giants?" "He years." [be] He also holds the record 3. "She is definitely one of the greatest tennis players." "Yes. I'm sure she a bath. on the team for about seven the next grand slam title." [win] 4. “Did you hear the news? Johnson's time the world record for years, but a new world record was set yesterday by a rival runner." "Really? That's amazing!" [be]

①学校でdisposalは形容詞と言われましたが 辞書には名詞しか出てきませんでした これは形容詞なんですか、？ ②with more and more disposal の訳仕方を教えてください！ ③ここでのaverageの意味は平均ですか？ ... Read More

1 With more and more disposal, packaged goods, the average household's volume of garbage skyrocketed. The 名 disposal package 面処分/売却/配置 他 包装される 圏平均/標準 average household *** / I 圏家版/家庭/王室 skyrocket 7 Z (急上昇する volume 園容程/量/音量 +4₂ ffl ・副 ☆ FE and FLE 17/₂ 形、形名

willの訳が「～できるだろう」と可能の意味を含んでいるのですがよいのでしょうか？よろしくお願い致します🙇

5 If we view each person we meet in the course of our dail life as a potential teacher, someone we can learn somethin from, we will naturally form new, rewarding friendships.

お願いします🤲

かっこ内の正しい語の番号を記せ。 1. I (1 went 2 came 3 got 4 passed) across an old (関西学院大) classmate on my way here. 2. What do the letters U.N. (1 do 2 stand 3 pay 4 tell) for? (関西学院大) 3. Be sure to (1 shut 2 get 3 turn 3 turn 4 fall) off the light before you go to bed. (名城大) 4. His brother went to the station with him to (1 meet 2 call 3 take 4 see) him off. (名城大) 5. I went jogging with my son. I was so tired that I couldn't (1 run 2 keep 3 hold 4 meet) up with him. (名城大)

問一から問4までがわかりません。 問一は何を入れて良いのかわからずこういう問題は何を勉強して良いかわかりません。 問2はsaveがでてきたので送ると訳し私やは家族や友人に記念切手を送るとなりましたがどう訳したら郵便切手についてる記念切手を取っておいて欲しいとなるのですか？ ... Read More

1 次の英文を読んで、後の問いに答えなさい。 I have several hobbies. music. I also enjoy watching TV. I like various kinds of books. (7) or countries, and novels. I read about a book a week. Agatha Christie. so I often check them ( I) and educational. I can I collected postage stamps. learn about various subjects. ) the post office issues them. related to I buy commemorative stamps ( 記念 people or (‡). I ask my family and friends to save commemorative stamps they receive on their mail. Since I have pen pals in India, Australia and Brazil, I get some foreign (2)ones as well. I 7) we exchange postage stamps. We meet once a month. belong ( + ) a club ( The club is a good place to get new stamps. It is also a good place to meet people. We Since I am social (), I have to plan the will have a Christmas party next month. party this year. Music is another of my ( They are reading, collecting postage stamps, and listening to I read mysteries, history books, books about different I particularly like mysteries. My favorite author is ) to buy so many books, I cannot (1 "Yesterday." I buy CDs several times a year. usually have to wait ( ) of the school library or the library in town. Collecting stamps is ( For example, many commemorative stamps (commemorative stamp: issue: 発行する I like the Beatles. I have all コ). I have a lot of CDs. their recordings. My favorite Beatles songs are the older ones, such ( ) "Help" and However, they are expensive. So I are to be related to: 関係・関連がある the Beatles: 60年代に活躍したイギリスのロックグループ) interests 問1 (ア)~ (タ) に適当な語彙を次の中から選び、 番号で答えなさい。 (一度のみ使用可) 1 on 6 with 一校受験合格レベル問題集4 aD ) my birthday or Christmas to get new CDs. My pastime in the evening is watching TV. I am ( 7 ) to watch it a few hours a 3 for 8 interested day before 10 o'clock. dramas, and police or legal dramas. I like comedies about families or groups of friends, medical I never watch (₺ ) are called “soap operas,” ) lives. Every week, I read TV Guide carefully and make a plan for the week. If someone else wants to see another program, I ( › ) are dramas about the characters' ( have to videotape my program and watch a later. 16 間 2 4 as 9 interesting 間 3 問4 問 5 out 10 chair

一枚目　長文 二枚目　問題（ア） 三枚目　自分の答えand模範解答 付属の解説本が意味不明でした。解説お願いしたいです。

10 Life Reading 目標 20分 速読問題 次の英文を2.5分で読んで, 1. の問いに答えなさい。 Would you like to try to read a book that is 140 pages long every day! Many - are Japanese are surprised (2) to learn how long some American newspapers are. They a Slæom orll aneqsgewen to ancieev listipib ert asli orl not always 140 pages long, but they are usually at least 50 pages long. On Sundays 70198 ni olqooq odT C to 21697 0 1 qoq T some big city newspapers have hundreds of pages and *weigh almost a kilogram. gnibro biqs news, too. 37 There are lots of sections 5 (3) Of course, not everything in such a newspaper is news. m2 T raqaq zabavě s esi vis (1974-monib) 19m 16918 i 1996 about books, movies, travel, computers and hobbies, as well as star interviews and es, as well s boy arroqe bas zadintend comics in color. There are also many *advertisements, of course, but a lot of people ano ang m CECING OF COU vsbru² no,199sq ylisb niebimos atidhe bias Hold com bris flood, 25ñola bas find the advertisements very entertaining. Of course, the newspapers have a lot of he) {lind sdt ni snovievs ch the news Moky) zpililoq You may be surprised to find that (4)such large newspapers are (5)very cheap. They gaidyar are much cheaper than a newspaper in Japan. A large, heavy Sunday *edition of a vbodyas J Sunday edition of a Japanese newspaper. ding/ 4 weigh [wéi] : 重さが･･･である 11 edition [idífan] : (新聞の)… 版 1. smi ca ad te bear a newspaper in a big city may only cost about 350 yen, but it is 20 times bigger than the JR noilo92 smse sdt best a siqot amae ad juos at ziqot installib yasm tuds et 7 advertisement [ædvərtáizmənt]: 2 @ (171 words)

16.の問題で、 ③をhad stoppedに直すのが正解なのですが、私はstoppedに直してしまいました。 agoは完了形と一緒に使えないと考えたのですが、この文章は違うのですか？ 教えて下さい🙇‍♀️

3 eave A to 「AをBに任せる 14. ② in that case → in which case もちろん雨が降るかもしれないが,その場合は屋内で式典を開催しなければなりません。 関係形容詞の which (必ず非制限用法で用いる) (4) come → to come 今やパーティーの準備はすべてできたのだから,私たちは招待客が来るのを待つだけで よい｡ ・wait for A to do 「Aが~するのを待つ」 15. 16.③ have stopped had stopped 数年前に講義中の古い冗談に学生たちが笑わなくなったことに気づいたのは,その年配 の教授にはショックだった。 ･過去完了 - 2- - 154

新中3です！英語が苦手です、、 単語ひとつに例文を作ってます 採点お願いします🙏 たぶんぼろぼろなんですけど、心優しい方細かくお願いします〜💦

is far from far probably I'm probably a genius. (94 17 to 30 LAAT" ) I still love you though though ! (2" (77 (2 787 01497!) actually this is actually happened story, I 2 18 1²) later See yo later, (7**er".) yet Have you eaten dinner yet? (+99T) -quickly Preparation quickly. (1211233) inside We to play inside (193) Thanks (x1=OKby or ).) taste 1 anyway anyway. white Where were you while I studied English? (Ahor R$ 2 勉強している間あなたは fix 7 hold Collect My hobby is paint I like strawberry taste ice cleam (#12115= "131221² 好きです) G Ⅰ can fix a TV.(私はテレビを修理できます) Statue of liberty holds I torch、(自由の女神は松明を持っている Collect cards of game. (私の趣味はゲームのカード集めです)。 I like painting very much, 14, 1871 37th and zz Berg)

中学英語 私の腕につかまってください-Hold on to my arm. 右側か模範解答なのですが、Please hold on my arm. と答えた場合間違いになりますか？ また、このときなぜ「ください」とあるのにpleaseが使われていないのかも教えていただき... Read More