因式分解:(1)x3-2x2-3x;(2)x4-16.
题型:解答题难度:一般来源:不详
因式分解: (1)x3-2x2-3x; (2)x4-16. |
答案
(1)x3-2x2-3x, =x(x2-2x-3), =x(x-3)(x+1); (2)x4-16, =(x2+4)(x2-4), =(x2+4)(x+2)(x-2). |
举一反三
将多项式ax2-4ay2分解因式所得结果为( )A.a(x2-4y2) | B.(ax+2y)(ax-2y) | C.a(x+4y)(x-4y) | D.a(x+2y)(x-2y) |
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分解因式 (1)3a2b+18a2b2+27a2b3 (2)x4+y4-2x2y2. |
若a2b+M=ab(N+2b),则M=______,N=______. |
因式分解: (1)2a2b-6ab (2)3x2y-3xy-6y (3)3ax+4by+4ay+3bx (4)(x2+y2)-16x2 (5)(x-y)(x-y-3)-10. |
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