1、-(xy)^3(-y)(xy)^2(xy^3)^2*(-x)^3

来源：学生作业帮编辑：大师作文网作业帮分类：数学作业时间：2024/09/21 08:15:59

1、-(xy)^3*(-y)(xy)^2*(xy^3)^2*(-x)^3
2、-a*a^5-(-2a^3)^2+(a^2)^3
3、8^90*(1/2)^90*(1/2)^180*(-0.125)^2005*(-8)^2006

1、-(xy)^3*(-y)(xy)^2*(xy^3)^2*(-x)^3
=-x^3y^3*(-y)(x^2y^2)(x^2y^6)(-x^3)
=-x^10y^12
2、-a*a^5-(-2a^3)^2+(a^2)^3
=-a^6-4a^6+a^6
=-4a^6
3、8^90*(1/2)^90*(1/2)^180*(-0.125)^2005*(-8)^2006
=2^270*(1/2)^90*(1/2)^180*(-0.125)^2005*(-8)^2005*(-8)
=[2^270*(1/2)^90*(1/2)^180]*[(-0.125)^2005*(-8)^2005]*(-8)
=1*1*(-8)
=-8

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