计算:2*(x平方y立方)立方—(x立方y平方)平方*y五次方—(x立方y四次方)平方*y (“*”是乘号)
问题描述:
计算:2*(x平方y立方)立方—(x立方y平方)平方*y五次方—(x立方y四次方)平方*y (“*”是乘号)
答
原式=2x^6y^9-x^6y^4*y^5-x^6y^8*y
=2x^6y^9-x^6y^9-x^6y^9
* =0
答
2(x^2y^3)^3 -(x^3y^2)^2×y^5 -(x^3y^4)^2×y
=2x^6y^9 -x^6y^9-x^6y^9
=0
^表示指数。
答
2*(x平方y立方)立方—(x立方y平方)平方*y五次方—(x立方y四次方)平方*y
=2x^6y^9-x^6y^9-x^6y^9
=0