计算:5x/x-y+ 5y/y-x
数学计算填空(5x+y)(5x-y)(5x+y)(-5x+y)(5x+y)(-5x-y)(5x+y)(x-5y)(x ^
计算(x+y)(x-y)(x+y)3次方(x-y)5次方
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:(3x-y)2-(2x+y)2+5x(y-x)
计算[(x-y)^3]^m[(x-y)^m]^5=.
计算 2(x+y)*3(x+y)*5(x+y)^5
方程式计算5X-2=Y 4X+3=Y 求X.Y
计算:(x-y)的5次方(x-y)²(x-y)³
计算:(X+Y)^5÷(-X-Y)^3*(X-Y)^2
(3x-y)^2+(2x+3y)(-2x-3y)+5xy 计算
利用因式分解计算1/2x(x-y)^2-1/5y(x-y)
平法差公式计算 (5x+3y)(3y-5x)-(4x-y)(4y+x)