1.(x+2y)^2-4(x-3y)^22.(2x-3y)^2-(2x+7y)^23.(x+y)^2-8(x+y-2)4.x(a-b)^3-^y(b-a)^35.(3a+2b)^2-(a-b)^2
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1.(x+2y)^2-4(x-3y)^22.(2x-3y)^2-(2x+7y)^23.(x+y)^2-8(x+y-2)4.x(a-b)^3-^y(b-a)^35.(3a+2b)^2-(a-b)^21.
1.(x+2y)^2-4(x-3y)^22.(2x-3y)^2-(2x+7y)^23.(x+y)^2-8(x+y-2)4.x(a-b)^3-^y(b-a)^35.(3a+2b)^2-(a-b)^2
1.(x+2y)^2-4(x-3y)^2
2.(2x-3y)^2-(2x+7y)^2
3.(x+y)^2-8(x+y-2)
4.x(a-b)^3-^y(b-a)^3
5.(3a+2b)^2-(a-b)^2
1.(x+2y)^2-4(x-3y)^22.(2x-3y)^2-(2x+7y)^23.(x+y)^2-8(x+y-2)4.x(a-b)^3-^y(b-a)^35.(3a+2b)^2-(a-b)^2
1.(x+2y)^2-4(x-3y)^2
=(x+2y)^2-(2x-6y)^2
=(x+2y+2x-6y)(x+2y-2x+6y)
=(3x-4y)(8y-x)
2.(2x-3y)^2-(2x+7y)^2
=(2x-3y+2x+7y)(2x-3y-2x-7y)
=-10y(4x+4y)
=-40y(x+y)
3.(x+y)^2-8(x+y-2)
=(x+y)²-8(x+y)+16
=(x+y-4)²
4.x(a-b)^3-y(b-a)^3
=x(a-b)^3+y(a-b)^3
=(x+y)(a-b)^3
5.(3a+2b)^2-(a-b)^2
=(3a+2b+a-b)(3a+2b-a+b)
=(4a+b)(2a+3b)
因式分解:a(x-y)^2+b(y-x)^3 4(x-y)^2+8(y-x)(x+y)1.a(x-y)^2+b(y-x)^3 2.4(x-y)^2+8(y-x)(x+y)
(x-y) (x-2y)+(x+2y) (x-3y)-2(x-3y) (x-4y)=
(x+3y-4)(2x-y)
计算(2x-3y)(x+4y)-(3x+y)(x-2y)(2x-3y)(x+4y)-(3x+y)(x-2y)
因式分解(x-2y)(x-3y)+(x-4y)(x-5y)+(x-3y)(x-5y)+(x-2y)(x-4y)
1.((y+2x)(-2x+y)+4(x+2y)^2)/3y 2.(2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2)/2(x-y)^2
x²/xy-x/y 3x/4x+y - x-2y/4x+y (1-y/y+x)÷x/y²-x²
(2x+y)(2x-3y)+x(2y+y) 2a(x-y)-4b(x-y)
x(x-y)2-(y-x)3
1.(x+2)^2-(x+y)^32.(x-y)^2-(x-y)^33.(x-y)^2-(y-x)^3
[2/3x-2/x+y(x+y/3x-x-y)]/x-y/x
化简:{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x
计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x
化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x
[(x+y)(x-y)-(x-y)²+2y(x-y)]÷4y
(2x-y)(2x+y)-2(3x-4y)(4y+3x)
x^4+x^3y+x^2*y^2+y^3x+y^4分解因式
(x-4y)(2x+3y)-(x+2y)(2y-x)