问题
解答题
分解因式:(1)36x3-9xy2;(2)-3a3+6a2b-3ab2.
答案
(1)36x3-9xy2,
=9x(4x2-y2),
=9x(2x+y)(2x-y);
(2)-3a3+6a2b-3ab2,
=-3a(a2-2ab+b2),
=-3a(a-b)2.
分解因式:(1)36x3-9xy2;(2)-3a3+6a2b-3ab2.
(1)36x3-9xy2,
=9x(4x2-y2),
=9x(2x+y)(2x-y);
(2)-3a3+6a2b-3ab2,
=-3a(a2-2ab+b2),
=-3a(a-b)2.