[3﹙x-y﹚^4 ﹙x+y﹚^5 -6﹙x-y﹚^3 ﹙x+y﹚^4 ]÷[3﹙x-y﹚²﹙x+y﹚³]等于多少
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[3﹙x-y﹚^4﹙x+y﹚^5-6﹙x-y﹚^3﹙x+y﹚^4]÷[3﹙x-y﹚²﹙x+y﹚³]等于多少[3﹙x-y﹚^4﹙x+y﹚^5-6﹙x-y﹚^3﹙x+y﹚^4]÷[3﹙
[3﹙x-y﹚^4 ﹙x+y﹚^5 -6﹙x-y﹚^3 ﹙x+y﹚^4 ]÷[3﹙x-y﹚²﹙x+y﹚³]等于多少
[3﹙x-y﹚^4 ﹙x+y﹚^5 -6﹙x-y﹚^3 ﹙x+y﹚^4 ]÷[3﹙x-y﹚²﹙x+y﹚³]等于多少
[3﹙x-y﹚^4 ﹙x+y﹚^5 -6﹙x-y﹚^3 ﹙x+y﹚^4 ]÷[3﹙x-y﹚²﹙x+y﹚³]等于多少
=(x-y)^2(x+y)^2-2(x-y)(x+y)=(x^2-y^2)^2-2(x^2-y^2)=x^4-2x^2y^2+y^4-2x^2+2y^2
[3﹙x-y﹚^4 ﹙x+y﹚^5 -6﹙x-y﹚^3 ﹙x+y﹚^4 ]÷[3﹙x-y﹚²﹙x+y﹚³]
=(x-y)²(x+y)²-2(x-y)(x+y)
=(x²-y²)(x²-y²-2)
[3﹙x-y﹚^4 ﹙x+y﹚^5 -6﹙x-y﹚^3 ﹙x+y﹚^4 ]÷[3﹙x-y﹚²﹙x+y﹚³]
=3(x-y)^3(x+y)^4[(x-y)(x+y)-2]÷[3﹙x-y﹚²﹙x+y﹚³]
=(x-y)(x+y)(x^2-y^2-2)
[3﹙x-y﹚^4 ﹙x+y﹚^5 -6﹙x-y﹚^3 ﹙x+y﹚^4 ]÷[3﹙x-y﹚²﹙x+y﹚³]
=(x-y)²(x+y)²-2(x-y)(x+y)
=(x²-y²)²-2(x²-y²)
=(x²-y²)(x²-y²-2)
[3﹙x-y﹚^4 ﹙x+y﹚^5 -6﹙x-y﹚^3 ﹙x+y﹚^4 ]÷[3﹙x-y﹚²﹙x+y﹚³]等于多少
已知实数x,y满足根号2x-3y-1+|x-2y+2|.求﹙5/2﹚x-﹙4/5﹚y的平方根
[x﹙x²y²-xy)-y(x²-x³y﹚]÷3x²y
设x y满足约束条件y≤x,y≥2-x,y≥3x-6,则﹙3y-2x-5﹚/﹙x﹢1﹚的取值范围是
设x y满足约束条件y≤x,y≥2-x,y≥3x-6,则﹙3y-2x-5﹚/﹙x﹢1﹚的取值范围是
已知关于X,Y的方程组2X＋Y=-3,X＋3Y=4求代数式3﹙2X＋Y﹚－5X﹙2X＋Y﹚的值
(3x-4y)(5x-4y)-(7x-8y)(6y-5x)
（x+y）^6/(x+y)^4-(x-y)^5/(x-y)^3 化简 ..
﹙4x－3y﹚－[﹣﹙3y－x﹚＋﹙x＋y﹚]－5x
已知2x－y/x＋3y＝2,求代数式﹙4x－2y/x＋3y﹚－﹙4x＋12y/2x－y﹚的值
二次根式加减方面的应用题已知4X²﹢Y²－4X－6Y＋10＝0.求﹙2X/3倍根号9X﹢Y²倍根号X/Y³﹚－﹙X²倍根号1/X－5X倍根号Y/X）的值
化简3x³＋6x³y/x²＋4xy＋4y²急!﹙3x³＋6x³y﹚/﹙x²＋4xy＋4y²﹚
49﹙x-y﹚²-25﹙x+y﹚²怎么因式分解?4（6x-y)(x-6y)
[﹙x+2y﹚﹙x-2y﹚-﹙2x-y﹚²+﹙3x-y﹚﹙2x-5y﹚]÷﹙-1/3x﹚初一
3x²－3﹙6x＋4y﹚－2[x³＋3﹙3x－2y﹚]其中x=1/5,y=3/4
函数y=x^2+4x+6 ﹙x∈[-3,-2]﹚的反函数
4x²y³﹙2x²－3xy＋5y²﹚÷﹙﹣4x²y²﹚
﹙1﹚4a+4b/5ab·15a2b/a-b﹙2﹚x²-4y²／x²+4x+4·x+2／3x²+6xy ﹙3﹚x²+1／x-6·x²-36／x³+x ﹙4﹚y²-x²／5x-4xy ÷ x+y／5x-4y运用分式的乘除法则