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(2001•内江)下列因式分解错误的是( ) A.x2-y2=(x+y)(x-y...
(2001•内江)下列因式分解错误的是( )
A.x2-y2=(x+y)(x-y)
B.x2+y2=(x+y)(x+y)
C.x2-xy+xz-yz=(x-y)(x+z)
D.x2-3x-10=(x+2)(x-5)
考点分析:
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