计算:(x+1)(x-1)(x2-1)=______.
题型:填空题难度:一般来源:不详
计算:(x+1)(x-1)(x2-1)=______. |
答案
(x+1)(x-1)(x2-1), =(x2-1)(x2-1), =(x2-1)2, =x4-2x2+1. |
举一反三
计算:(3x-2)2=______;(-a+2b)(a+2b)=______. |
(______)+16x2=[(______)+1][(______)-1] |
若m2-n2=12,且m+n=3,则m-n=______. |
已知a-b=1,a+b=2008,则a2-b2的值为______. |
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