题目内容
(2011广东广州市,19,10分)分解因式8(x2-2y2)-x(7x+y)+xy.
8(x2-2y2)-x(7x+y)+xy
=8x2-16y2-7x2-xy+xy
=x2-16y2
=(x+4y)(x-4y) 解析:
略
=8x2-16y2-7x2-xy+xy
=x2-16y2
=(x+4y)(x-4y) 解析:
略
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题目内容
(2011广东广州市,19,10分)分解因式8(x2-2y2)-x(7x+y)+xy.