x-y的平方 2(x-y)w w的平方-搜答案-搜搜考试网

原式=（2x-y)(2x+y)(4x^2+y^2)=(4x^2-y^2)(4x^2+y^2)=16x^4-y^4

x^2=x的平方‘/’为除以[(x+2y)^2-(x+y)(x-y)-5y^2]/(2x)=[(x^2+4xy+4y^2)-(x^2-y^2)-5y^2]/(2x)=[4xy]/(2x)=2y[(3x

（2x-y）(4x的平方-y的平方)（2x+y）=(2x-y)(2x+y)(4x²-y²)=(4x²-y²)(4x²-y²)=16x^4-8

y/(x²-xy)+2/(y-x)-x/(y²-xy)=[y²+2(-xy)+x²]/(x²y-xy²)=(x-y)²/[(x-y

2(y-x)²-7(x-y)+6(x-y)-3(y-x)²=-(y-x)²-(x-y)=-(x-y)²-(x-y)=-(x-y)[(x-y)+1]=(y-x)(

（x+y）(x+2y)=x²+xy+2xy+2y²=x²+3xy+2y²

平方差原式=(x²-4y²)(x²-4y²)=(x²-4y²)²=x^4-8x²y²+16y^4再问：麻烦你能

题目没有说明是化简还是分解因式,如果是化简的话,就是：7(x+y)²-5(x+y)²-2(x+y)=2(x+y)²－2(x+y)=2(x²＋2xy＋y²

3(x-y)²*(y-x)²*2(x-y)=6(x-y)^(2+2+1)=6(x-y)^5再问：需要再详细一点的过程再答：3(x-y)²*(y-x)²*2(x-

(x-y)平方+2y(x-y)=(x-y)(x-y+2y)=(x-y)(x+y)

（x+y)(x-y)+(x-y)的平方-(6X的平方Y-2XY的平方）/2Y=x²-y²+x²-2xy+y²-3x²+xy=-x²-xy

｛（x的平方+y的平方）-（x的平方-y的平方）+2y(x-y)}除4y=(2y^2+2y(x-y)/(4y)=2xy/(4y)=x/2

【2（x-y）²-8（x-y)²（x+y）+6y（x-y）²】÷2（x-y）²=2（x-y）²÷2(x-y)²-8（x-y)²（x

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

解(x-y)(x+y)-(x-2y)²+x(3x-5y)-(x-y)(x-2y)=(x²-y²)-(x²-4xy+4y²)+(3x²-5xy

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

x8＋256y8-32x4y4(用手机打的不要介意,给个最佳答案吧）

∵4x²-y²+2x-y=(2x-y)(2x+y)+(2x-y)=(2x-y)(2x+y+1)∴4x²-y²+2x-y=(2x-y)(2x+y+1)不懂得欢迎追

x的平方-x-4y的平方+2y=(x-2y)(x+2y)-(x-2y)=(x-2y)(x+2y-1)

(x平方+2xy+y的平方）/（x+y)=（x+y)²/(x+y)=x+y