(3x^2+2y^3)(-3x^2+2y^3)
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(3x^2+2y^3)(-3x^2+2y^3)
(3x^2+2y^3)(-3x^2+2y^3)
(3x^2+2y^3)(-3x^2+2y^3)
=4y^6-9x^4
-9x∧4 +6x∧2y∧3-6x∧2y∧2+4y∧5
化简((X-2Y)的平方+(X-Y)(x+Y)-2(X-3Y)(X-Y))除以Y
把6x(x-y)的平方+3(y-x)的立方分解因式我知道答案是6x(x-y)^2+3(y-x)^3=6x(x-y)^2-3(x-y)^3=3(x-y)^2[2x-(x-y)]=3(x-y)^2(x+y)可为什么=6x(x-y)^2-3(x-y)^3=3(x-y)^2[2x-(x-y)]
2(x-y)²-3(x-y)(-y-x)
x(x-y)2-(y-x)3
已知x-y=1,y≠0,求{(x+2y)²+(2x+y)(x+4y)-3(x+y)(x-y)}÷y的值.
(2x-y)乘(2x+y)+(2x-y)乘(y-4x)+2y(y-3x)
因式分解4(x-y)^2-12(y-x)+y
化简:5根号X^3Y-2Y根号XY-6根号XY+根号X分之Y+根号Y分之X
(x-y)(2x+3y)-3(x+2y)(x-2y)分解因式
(x-3y)(-3y-x)-2(x-3y)^2要过程
[2/3x-2/x+y(x+y/3x-x-y)]/x-y/x
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计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x
化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x
因式分解-1/4x^3+x^2y-x^2y
计算:x+2y/x-y+2x/y-x-3y/x-y
化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方
[(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y)