0.2x的平方y
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(1)x的平方-y的平方+4x+4y=(x+y)(x-y)+4(x+y)=(x+y)(x-y+4)(2)x的平方*y的平方+1-x的平方-y的平方=x²y²-x²+1-y
原式=(x²+y²+2xy)(x²+y²-2xy)/(x+y)²=(x+y)²(x-y)²/(x+y)²=(x-y)
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
约分6x的平方y/2y的平方=3x^2/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)(
25(x+y)的平方-9(x-y)的平方=[5(x+y)+3(x-y)][5(x+y)-3(x-y)]=(8x+2y)(2x+8y)=4(4x+y)(x+4y)
(x平方+y平方)平方-y平方=x平方+6所以(x²+y²)²-(x²+y²)-6=0(x²+y²+2)(x²+y
((x-y)(x-y))/((x-y)(x+y))=(x-y)/(x+y).
(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/(x+y)(x--)^3=x/(x+y)(x--y)^3y/(y+x)(y--x)^2=y(x--y)/(x+y)(x--y)^3.
x的平方乘y的平方-4-2x的平方乘y的平方=-x的平方乘y的平方-4
(x^2+y^2)^2-4x^2y^2=(x^2+y^2+2xy)(x^2+y^2-2xy)=(x+y)^2*(x-y)^2=(x^2-y^2)^2数学佰亊嗵为你解答,希望我的回答为您带来帮助!
x8+256y8-32x4y4(用手机打的不要介意,给个最佳答案吧)
x(x-y)²-(y-x)³=x(x-y)²+(x-y)³=(x-y)²[x+(x-y)]=(x-y)²(2x-y)
∵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
36(x+y)²-49(x-y)²=[6(x+y)+7(x-y)][6(x+y)-7(x-y)]=(6x+6y+7x-7y)(6x+6y-7x+7y)=(13x-y)(-x+13y
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