Grade

Type of questions

Mathematics Junior High

大きい1〜3までがわかりません。 途中計算から答えまでお願いします🥺 至急です🙏

1. 式の展開と因数分解 1 次の式を計算しなさい。 □① (2x-3y) (4x+3y) - (2x+3y) (2x-3y) -(tx² +6xy-(2xy-q4² ) -(qx² _q4²) (4x² - 6x4-94²] -41² +9y² 5-627 2 次の式を因数分解しなさい。 (x+1)(x-3) - (x-7) -8 (2)(x+3)=x+7-8 (x+) (K-1)-x-- = こ = =(x+1)(x+3)-(x+1) M (X-3)-M MCX-3] 実力アップ問題 3 次の問いに答えなさい。 -6x4 (+1)(3) □Ⓡ (+²b)²-(ª-2b )² + ab (1²+th) - (²4²) = ah =a+4h a 14th (24th) t 4 □② (3x+1)(x-4)-2(z-1)² + 16 2XM-4U- XXX Y x y □(1)x+y=3,ry=2 のとき, x+y2 の値を求めよ。 □ (2) a+b=4,ab=- めよ。 (X + z(x+y) -(x+3)(x-4) (ページ xy (α-1-7² ? 5 右の図のように,同じ大きさの白と黒の正方形のタイルを, すきまなく重ならないように規則正しく並べ, 太い線で囲まれ た図形をつくっていく。 このとき, 次の問いに答えなさい。 □(1) 2番目の図形には、黒いタイルは何枚使われているか, n の式で表せ。 =1/27 のとき、a²+6²2-2ab の値 a²-zakth². 数学 教科書 P.10~ 16 肝 4²+ (±1²-2x = 3×3 16+ +-1 44 4 右の図は, 1から順に自然数を5個ずつ並べ, すべての偶数を消したものである。このとき, 1番目 179 a b 13 の形で、5つの奇数がはいるように取り出し, c とおくとき どの部分を取り出し 17 19 de た場合でも,等式de-ab=20cが成り立つことを証明しなさい。 64 2番目 3番目 1 3 7 11 13 17 21 23

Unresolved Answers: 2
English Senior High

答えないです。軽く根拠と答え教えていただきたいです。

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Unresolved Answers: 1