3(x-y)^4 6x(y-x)^3

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3(x-y)^4 6x(y-x)^3
(x-y)^3-(x-y)^4 因式分解

原式=-(x-y)³(x-y-1)

(x-y)^2-(x-y)^3因式分解

(x-y)^2-(x-y)^3=(x-y)^2[1-(x-y)]=(x-y)^2(1-x+y)2.(x+y)^2-(x+y)^3=(x+y)^2[1-(x+y)]=(x+y)^2(1-x-y)3、(x

x/x-y*y^2/x+y-x^3y2/x^4-y^4/x^2/x^2+y^2

写清楚点点比如说前面是X/X还是X/(X-Y)打上括号分段这样才能清楚的做

(3x+y)(3x-7y)

(3x+y)(3x-y)=9x²-3xy+3xy-y²=9x²-y²

计算(x+y)(x+y)^2(-x-y)^3

(x+y)(x+y)^2(-x-y)^3=-(x+y)^6

因式分解3x^2(x-y)+6x(y-x)

3x^2(x-y)+6x(y-x)=3x^2(x-y)-6x(x-y)=(x-y)(3x^2-6x)=3x(x-y)(x-2)

(y-x)(x-y)^3(y-x)^5怎么算

(y-x)(x-y)^3(y-x)^5=(y-x)[-(y-x)^3](y-x)^5=-(y-x)^(1+3+5)=-(y-x)^9=(x-y)^9

已知X-Y/X+Y=3,求代数式2(x-y)/X+Y-3X+Y/X+Y

X+Y分之X-Y等于3x=-2yX+Y分之2(x-y)减X+Y分之3X+Y=(-x-3y)/(x+y)=1

已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)

因为(x-y)/(x+y)=3,则(x+y)/(x-y)=1/3则5(x-y)(x+y)-(x+y)/2(x-y)=5*3-1/(3*2)=15-1/6=89/6

计算:(-x-2y) * (3x-y)

(-x-2y)*(3x-y)=-3x^2-5xy+2y^2

数学(x-y)^5*(y-x)^3*(x-y)^2

(x-y)^5*(y-x)^3*(x-y)^2=-(x-y)^5*(x-y)^3*(x-y)^2=-(x-y)^(5+3+2)=-(x-y)^10

化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方

(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方=x²-2xy-3y²-x²+4y²-x²+2xy-y²=(x²-

[(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y)

=(x-y)[(3x+y)-(2x+3y)]*(x-y)=(x-y)*(x-y)(3x+y-2x-3y)=(x-y)(x-y)(x-2y)到底是化简,还是?=(x*x-2xy+y*y)(x-2y)=x

{(x,y) |x|+|y|

区域是一个正方形

【x-3y][x+y]-[x-2y][x +2y]-[x-y

解题思路:根据题意,由整式的运算的知识整理,分析可以求得解题过程:

有这样一道题:"计算(2*x*x*x-3*x*x*y-2*x*y*y)-(x*x*x-2*x*y*y+y*y*y)+【-

解代数式得:-3x的平方y-2y的三次方因为1/2的平方=-1/2的平方,所以结果仍正确给分吧!嘿嘿!

[x(x^2y^2-xy)-y(x^2-x^3y)]/3x^2y

[x(x^2y^2-xy)-y(x^2-x^3y)]/(3x^2y)={x[xy(xy-1)]-y[x²(1-xy)]}/(3x²y)=[x²y(xy-1)-yx&sup

(X+Y-3)(X-Y+3)

(X+Y-3)(X-Y+3)=[X+(Y-3)][X-(Y-3)]=X²-(Y-3)²

(x+y)^2-3(x-y)因式分解

(x+y)^2-3(x+y)=(x+y)(x+y-3)

x>y?x:y

判断X的数值是否大于Y的数值如果是则为真等式去X的值反之取Y的值