把下列各式分解因式:(1)4x 2 -16; (2)(x-y) 2 -14(y-x)+49; (3)x 2 y-2xy 2 +y 3 ; (4)

2025-06-26 12:58:49
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回答1:

解:(1)4(x+2)(x-2);
(2)(x-y+7) 2
(3)y(x-y) 2
(4)(a+2) 2 (a-2) 2
(5)(x- y) 2
(6)(a+b+3) 2