摘要:1 因式分解:nx-ny=n ; 1-a2= ; x2-5x+6= m2+mn+ =22.当x 时.分式有意义.
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把下列各式分解因式:
(1)-
x2+0.04;
(2)16a2b4-8ab3c2+b2c4;
(3)
;
(4)y(x-y)-
x2;
(5)16x5-49xy4;
(6)7am+1-14am+7am-1;
(7)(3a2-b2)2-(a2-3b2)2;
(8)2(x2+y2)(x+y)2-(x2-y2)2.
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