作业帮(4X²y-2x²)÷(-2X)²
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/14 01:45:24
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
先化简[(x²+y²)-(x-y)²+2y(x-y)]/4y[(x²+y²)-(x-y)²+2y(x-y)]/4y=[x²+y&s
(x^2-y^2)/(x+y)-(4x(x-y)+y^2)/(2x-y)=(x-y)(x+y)/(x+y)-(4x^2-4xy+y^2)/(2x-y)=(x-y)-(2x-y)^2/(2x-y)=(x
原始=(4x²-4xy+y²+4x²-y²-4x²+4xy-4x)÷2x=(4x²-4x)÷2x=4x²÷2x-4x÷2x=2x-
楼上的全错,{(3x+y)(3x-y)-(x-5y)(5x-y)-(x-2y)²}÷(-4x)={9X²-(5x²-xy-25x²+5y²)-(x&s
原式=[9x²-12xy+4y²-（16xy-4x²+4y²-xy）]÷3x=（9x²-12xy+4y²-16xy+4x²-4y&
1)x(x-y)(x+y)-x(x+y)^2=x((x-y)(x+y)-(x+y)^2)=x(x^2-y^2-x^2-2xy-y^2)=x(-2xy-2y^2)=-2xy(x+y)2)（2a+b)(2
[(-x-y)(-x+y)-(x+y)^2-x(y-y^2)}÷1/2y=[x²-y²-x²-2xy-y²-xy+xy²]/(y/2)=[(x-2)y
（2x-y)(2X+Y+Y-4X)+2Y^2-6XY+2X^2=-4X^2-2Y^2+6XY+2Y^2+2X^2=-2x^2在线随笔解答,不知是否正确!请检查~·
原式=(x-y)²/(x+y)²(x+y)^4/(x-y)²*1/(x+y)=x+y=-3
先一个一个的展开括号项,再同项合并就行了啊[x(x-y)-y(x-y)+(x+y)(x-y)]÷2x=[xx-xy-(xy-yy)+x(x-y)+y(x-y)]÷2x=[xx-xy-xy+yy+xx-
4x^2+y^2-4xy-4(x^2-xy+2xy-2y^2)展开化简吧!
4x(y-x)-y²=4xy-4x²-y²=-(4x²-4xy+y²)=-(2x-y)²很高兴为您解答,【the1990】团队为您答题.请点
(1)(-2x)^3-3x乘（x-2x^2）=-8x³-3x²+6x³=-2x³-3x²=-x²(2x+3)(2)[(x+2y)^2-(x-
（1)x^2/x)-y-x-y=x-y-x-y=-2y(2)(a/a-b)-(a/a+b)-(2b^2/a^2-b^2)=a(a+b-a+b)/(a^2-b^2)-(2b^2/a^2-b^2)=2b/
(2x-y)²-4(x-y)(x+y)=(4x²-4xy+y²)-4(x²-y²)=4x²-4xy+y²-4x²+4y&
[(x+2y)²-（x+y)(3x-y)-5y²]÷(2x),其中x,y满足x²+4x+y²-y+17/4=0将x²+4x+y²-y+17/
原式等于2x^2-xy+6xy-3y^2-8x+4y=2x^2+5xy-3y^2-8x+4y
1.[(x-y)^2-2(y-x)]÷(x-y)=[(x-y)^2+2(x-y)]÷(x-y)=(x-y)(x-y+2)÷(x-y)=x-y+22.[(3a-7)^2-(a+5)^2]÷(4a-24)