3(x-y)^2-6(x-y)-24
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3(x-y)^2-6(x-y)-243(x-y)^2-6(x-y)-243(x-y)^2-6(x-y)-243(x-y)^2-6(x-y)-24=3[(x-y)²-2(x-y)-8]=3(x
3(x-y)^2-6(x-y)-24
3(x-y)^2-6(x-y)-24
3(x-y)^2-6(x-y)-24
3(x-y)^2-6(x-y)-24
=3[(x-y)²-2(x-y)-8]
=3(x-y-4)(x-y+2)
3(x-y)^2-6(x-y)-24
=3【(x-y)^2-2(x-y)-8】
=3（x-y+2）（x-y-4）
2-6
x+y/2+ x-y/2=6 2(x+y)-3x+3y=24 求X Y
[2(x-y)^5-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2[2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2
【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y)
3y/x*x-y*y+x/x*x-2xy+y*y+6y*y/x*x*x-x*x*y-xy*y+y*y*y等于多少?
因式分解3x^2(x-y)+6x(y-x)
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=
3(x-y)^2-6(x-y)-24
计算(36x ^4y^3-24x^3y^2+3x^2y^2)/(-6x^2y)
二元一次方程 x+y/2+x-y/3=6 2(x+y)-3x+3y=24
二元一次方程 x+y/2+x-y/3=6 2(x+y)-3x+3y=24
二元一次方程 x+y/2+x-y/3=6 2(x+y)-3x+3y=24
方程组2分之x+y+3分之x-y＝6,2（x+y)-3x+3y=24
(66x^6y^3-24x^4y^2+9x^2y)÷(-3x^2y)化简
2(2x+3y)(3x+2y)-(6x-y)(2x-5y)
x+y/2+x-y/6=5 2(x+y)-3(x-y)=-2
x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20
{(x+y)/2+(x-y)/3=6 4(x+y)-3(x-y)=-20
4(x+y)-3(x-y)=-20,2/x+y+3/x-y=6