(3xy^2)^2+(-4xy^3)*(-xy)还有(-2x^3)^3*(1/2x^2)^2
问题描述:
(3xy^2)^2+(-4xy^3)*(-xy)还有(-2x^3)^3*(1/2x^2)^2
答
(3xy^2)^2+(-4xy^3)*(-xy)
=9x^2y^4 +4x^2y^4
=13x^2y^4
还有(-2x^3)^3*(1/2x^2)^2
=-8x^9×1/4x^4
=-2x^13还有呢(-x^2y)^3+7(x^2)^2*(-x)^2*(-y)^3不是二个吗?还有什么?觉得这计算题比解答题都难请采纳后,再提问
(-x^2y)^3+7(x^2)^2*(-x)^2*(-y)^3
=-x^6y^3-7x^6y^3
=-8x^6y^3