将下列各式分解因式:(1)3x-12x3(2)(x2+y2)2-4x2y2.
题型:解答题难度:一般来源:不详
将下列各式分解因式: (1)3x-12x3 (2)(x2+y2)2-4x2y2. |
答案
(1)3x-12x3, =3x(1-4x2), =3x(1+2x)(1-2x);
(2)(x2+y2)2-4x2y2, =(x2+y2+2xy)(x2+y2-2xy), =(x+y)2(x-y)2. |
举一反三
下列多项式中,不能分解因式的是( )A.a3b3-ab | B.(x-y)2+y-x | C.+(-x)2 | D.x2+6xy+9y2 |
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若a2+a-1=0,则a3+2a2+2013=______. |
下列分解因式正确的是( )A.2x2-xy-x=2x(x-y-1) | B.-x2+2xy-3y=-y(xy-2x-3) | C.x(x-y)-y(x-y)=(x-y)2 | D.x2-x-3=x(x-1)-3 |
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