Mathematics
Senior High
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(5)と(6)の問題の解き方教えて欲しいで
2
次の式を展開せよ。
(1) (3−2x)(1+x)
(3) (x-y+1)²
(5) (x+y-z)(x-y+z) 3ab)
(7) (x²+2x+2)(x²-2x+2)
(9) (x²+x-2)(x²+x+3)
22 Oms
(2)
(2m+5)(m-2)
p.16~18
(4) (6a-5b) (6a+5b)
(6) (x−1)(x+1)(x-2)(x+2)
(8) (x¹+1) (x²+1) (x+1)(x−1)
(10) (x+4) (x+2)(x-1)(x-3)
OKAOHR01
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工夫すればいいんですね!!!
教えて下さりありがとうございます。