问题
解答题
分解因式:
(1)6m2n-15n2m+30m2n2
(2)x(x-y)2-y(x-y)
答案
(1)6m2n-15n2m+30m2n2=3mn(2m-5n+10mn);
(2)x(x-y)2-y(x-y)=(x-y)(x2-xy-y).
分解因式:
(1)6m2n-15n2m+30m2n2
(2)x(x-y)2-y(x-y)
(1)6m2n-15n2m+30m2n2=3mn(2m-5n+10mn);
(2)x(x-y)2-y(x-y)=(x-y)(x2-xy-y).