摘要:下列计算正确的是 ( ) A.(ab4)4=a4b8 B.(a2)3÷(a3)2=0 C. (-x)6÷(-x3)=-x3 D. -x2y3×100=02.下列各式可以分解因式的是 ( ) A.x2-(-y2) D.4x2+2xy+y2 C -x2+4y2 D.x2-2xy-y2
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