(x+3y)/(x^2+xy)-x+y计算题
(2×y+x²-y²)-(x²-y²-3xy) 计算题,
一道计算题:(2x^3y^2-3x^2y+4xy^3)/(-2x)/(-y)
计算题:(-3x^2y^3+6x^2y^2-1/3xy)÷(-1/3xy)
计算题(-3x^2y^2+6x^2y^2-1/3xy)÷(-1/3xy)
计算题:(-2x+3y)^2
计算题(2x+y)(x+2y)-(2x+3y)(3x-2y)
数学计算题(0.3x³+x²y-2xy²)-(0.5x³-2x²y+1
计算题:(9x-4y)(-3x+2y)(-2y-3x)
(4x^2-y^2)^2除以(-2x+y分之4x^2-4xy+y^2)^3 ,计算题
数学分式计算题:(x^2-4y^2)/x^2+2xy+y^2÷x+2y/2x^2+2xy.
有这样一道计算题:“计算(2x-3xy-2xy)-(x-2x+y)+(-x+3xy-y)的值,其中“x=1/2,y=-1
帮个忙,计算题1.(x^2-6xy+9y^2)÷(x-3y) 2.4x^5y^3÷{x^4y^3÷[x^3y^2÷(x^