Mathematics
Senior High
(3)計算式もおしえてほしいです
(3) (2x+y)°(2x-y)
(6- +g
(,8+6イカメ)(ch+ちイ力、メウ)
16kg
展開の公式
ー(a+b)?=α°+2ab+6°
の
(a-b)?=a-2ab+6°
3(x+a)(x+b)=x?+(a+b)x+ab ht) ④ (ax+6)(c
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