作业帮5/12(x+y)^2·(-x-y)^3·(-3/4(x-y)^3)·6/5(y-x)^2
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5/12(x+y)^2·(-x-y)^3·(-3/4(x-y)^3)·6/5(y-x)^2
5/12(x+y)^2·(-x-y)^3·(-3/4(x-y)^3)·6/5(y-x)^2
5/12(x+y)^2·(-x-y)^3·(-3/4(x-y)^3)·6/5(y-x)^2
=(5/12)*(-1)^3*(-3/4)*(6/5)*(x+y)^5*(x-y)^5
=3/8*(x^2-y^2)^5
=0.375x^10-1.875x^8*y^2+3.75x^6*y^4-3.75x^4*y^6+1.875x^2*y^8-0.375y^10
=-5/12(x+y)^5·9/10(x-y)^5=-3/8[(x+y)(x-y)]^5=-3/8(x^2-y^5)^5
化简:5(x-y)+2(x+y)-3(x-y)
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
(2x-3y)-(5x-y)
(2X-3y)-(5x-y)
(2x-5y)(3x+y)
因式分解(x-2y)(x-3y)+(x-4y)(x-5y)+（x-3y)(x-5y)+(x-2y)(x-4y)
化简(x+y)-(2x+y/2)-(3x+y/6)-(4x+y/12)-(5x+y/20)-……-(10x+y/90)
(2x+y)²+(x+3y)(x-3y)-x(5x+8y)因式分解
计算.2x÷x/5x+3y^2-4y+4/2y-6·1/y+3÷12-6y/9-y^2
[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
[(x+2y)(x-2y)-(2x-y)^2+(3x-y))2x-5y)]/(-x)我急用
[(x+2y)(x-2y)-(2x-y)²+(3x-y(2x-5y)]/(-x)的解答
5/12[-3/4(x-y)^3]*(x+y)^2*(-x-y)^3*5/6(y-x)^2
12y(x-y)^2-8(x-y)^3=?
解方程组：x+y/2+x-y/3=6 4(x+y)-5(x-y)=12
(5x+2y)(5x-2y)-(3x+2y)(3x-2y)
2(x-2y)²-7(x-2y)³+3(2y-x)²+(2y-x)³合并同类项 这个式子2（x-2y)²-7（x-2y)³+3(2y-x)²-(2y-x)³=2（x-2y)²-7（x-2y)³+3(x-2y)²+(x-2y)³=5(x-2y)²-6(x-2y)³=(x-2y)²(5-6x+12y)
[12(x+y)^3+3(x+y)(x-y)^2]÷6(x+y)