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分解因式
(1)24m2+18m;
(2)9a2-
1
4
b2
(3)m(x-y)+2(y-x); 
(4)(x+y)2-10(x+y)+25;
(5)a4-16b4
人气:298 ℃ 时间:2019-08-20 16:38:07
解答
(1)24m2+18m=6m(4m+3);(2)9a2-14b2=(3a+12b)(3a-12b);(3)m(x-y)+2(y-x)=m(x-y)-2(x-y)=(x-y)(m-2);(4)(x+y)2-10(x+y)+25=(x+y-5)2;(5)a4-16b4=(a2+4b2)(a2-4b2)=(a2+4b2...
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