(x^2*y^3)^4+( -2x^4*y)^2*y^10=5x^8y^12求过程!急!
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(x^2*y^3)^4+(-2x^4*y)^2*y^10=5x^8y^12求过程!急!(x^2*y^3)^4+(-2x^4*y)^2*y^10=5x^8y^12求过程!急!(x^2*y^3)^4+(-
(x^2*y^3)^4+( -2x^4*y)^2*y^10=5x^8y^12求过程!急!
(x^2*y^3)^4+( -2x^4*y)^2*y^10=5x^8y^12求过程!急!
(x^2*y^3)^4+( -2x^4*y)^2*y^10=5x^8y^12求过程!急!
(x^2*y^3)^4+( -2x^4*y)^2*y^10
=x^8y^12+4x^8y^2*y^10
=x^8y^12+4x^8y^12
=5x^8y^12
(x-y) (x-2y)+(x+2y) (x-3y)-2(x-3y) (x-4y)=
x²/xy-x/y 3x/4x+y - x-2y/4x+y (1-y/y+x)÷x/y²-x²
(x+3y-4)(2x-y)
计算（2x-3y)(x+4y)-(3x+y)(x-2y)（2x-3y)(x+4y)-(3x+y)(x-2y)
因式分解(x-2y)(x-3y)+(x-4y)(x-5y)+（x-3y)(x-5y)+(x-2y)(x-4y)
(2x+y)(2x-3y)+x(2y+y) 2a(x-y)-4b(x-y)
(2x-y)(2x+y)-2(3x-4y)(4y+3x)
4x*3-4x*2y-(x-y)因式分解
x^3+2x^2y-4x-8y
2x-{-3y+[4x-(2y-x)]}
x^4+x^3y+x^2*y^2+y^3x+y^4分解因式
(3x-y)(y+3x)-2(4x-3y)(4x+3y)
化简：2x-{-3y+[4x-(3x-y]}
(x-3y)(y+2x)-(4y-3x)(3x+4y)计算
5/4(x+y)(-x-y)^3*[-4/3(x-y)]*[-3/5(y-x)^2]
(x-4y)(2x+3y)-(x+2y)(2y-x)
(2x-y)(3x-4y)-2(x-y)(2x-5y)简便运算
{3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1