积的乘方计算1)(2x^2)^4+(-3x^3)^2·x^5+x^2·(-3x^3)^22)(5x^2y)^3+(-xy
积的乘方计算1)(2x^2)^4+(-3x^3)^2·x^5+x^2·(-3x^3)^22)(5x^2y)^3+(-xy
计算:(5-xy/x^3-x^2y)/(1-5/xy)^2*(y-x)^3
计算(x^8-x^7y+x^5y^3-x^4y^4+x^3y^5-x^y^7+y^8)(x^2+xy+y^2)
计算3xy[2xy-x(y-2)+x-1]
计算3x[xy-2x(1/y-x/3]+3y(x²-y²)
Y=(log3 3x/x+1) 2的乘方 — log3 9(x+1)/x X log3 (x+1)2的乘方/9x 2的乘
计算.3x平方+{2X平方-3X}-{-X+5X的平方} 其中X=314 {5XY-8X平方}-{-12X平方+4XY}
计算(x+4)·(-2x)-(x+1)(x-1)+(-3x+2)(x+1); (3x-y)(y+3x)-(4x-3x)(
计算:3xy[2xy-x(y-2)+x]
计算4xy+(x-2y)的平方+(x+3y)(3y-x)
(3x-y)^2+(2x+3y)(-2x-3y)+5xy 计算
通分计算:(1)2x-3/(x-1)(x-4) - x-2/(1-x)(4-x) (2)x平方-y平方/xy - xy-