问题描述:
简便计算(3m^2n^2)^2X(-2m^2)^4X(-n^2)^5 2008^2-2007X2009 (a+b)(a^2+b^2)(a-b)
简便计算(3m^2n^2)^2X(-2m^2)^4X(-n^2)^5
2008^2-2007X2009
(a+b)(a^2+b^2)(a-b)
(3x^2y-xy^2+1/2xy)除以(-1/2xy)
简便计算(3m^2n^2)^2X(-2m^2)^4X(-n^2)^5
2008^2-2007X2009
(a+b)(a^2+b^2)(a-b)
(3x^2y-xy^2+1/2xy)除以(-1/2xy)
问题解答:
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