Mathematics
Senior High
(1)から(8)まで分かりません
解き方が分からないので解き方を教えてください！
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5次の式を展開せよ。
(1)(z°+9(x+3)Xx-3)= (x→9) (x
z-と/
(2)(4x°+1(2xー1(2x+1)= (4x )
- 16x-1
(3)(x+2){xー2}= (AtB)
(4)(2x+ y{2x- y?= (A+B)
(5)(x+3(x+5(x-5Xx-3)=
(6)(2x-1(x+ 3(2x+1)(x-3)=
(7)(a-b)Ra+b){a"+69?= 0ーキ
(8) (xー1Xx*+1)(x?+1(x+1)=
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