Mathematics
Senior High
Solved

このふたつの問題の解き方が違うのは何故でしょうか?なぜ4番は(a+1)にbをかけるのでしょうか?

(3) 4-4y+2xy-x² 2(x-2)= x²+4 =2(x-2)g-(x+2)(x-2) =(x-2)(x-2y+2) (4) a2b+a-b-1 COAUFF! =(a²=-176 (a-1) =(α-1xa+b+la+ (a-1){(a+16+1} = = (a->(ab+b+17

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