(4x+5y)^2(2x-3)^2(-a+mn)^2
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(4x+5y)^2(2x-3)^2(-a+mn)^2
(4x+5y)^2
(2x-3)^2
(-a+mn)^2
(4x+5y)^2(2x-3)^2(-a+mn)^2
16X²+40XY+25Y²
4X²+9-12X
A²+M²N²-2AMN
不知道对不对~
(1)x^2*x^8+x^13/x^3 (2)a^19/a^12/a^3 (3) (x-2y)^5/(2y-x)^3 (4)(x-y)^5/(x-y) (5)(x-y)^6/(y-x)^4
(2x+y)(2x-3y)+x(2y+y) 2a(x-y)-4b(x-y)
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)
5a(x-y)^2+10a(y-x)^3
因式分解(x-2y)(x-3y)+(x-4y)(x-5y)+(x-3y)(x-5y)+(x-2y)(x-4y)
(1)x(x+10)-2(3x-2) 分解因式y(2y+1)-y(y-1)+1 2x(2x-y)+y(y-2x) 2y(y-2)-y(y-4)-1 x(x+8)-8(x+2) (a+2)(a-2)-5 (x-3)(a-2)-5 (x+3)(x+4)+4分之1
因式分解-5a^2+25a;25x^2-16y^2;x^3-25x;x^2(x-y)+y^2(y-x);x^2y^4-16x^2;(a+b)^2+2(a+b)+1
(x-2y)^5=a0(x+2y)^5+a1(x+2y)^4*y+a2(x+2y)^3*y^2+a3(x+2y)^2*y^3+a4(x+2y)y^4+a
几道 数学题急啊 对了再加20分(x+y)^2-(x+y)^3(x-y)^2-(x-y)^3 (x-y)^2-(y-x)^32(x-y)-3(y-x)^24ab(a+b)^2-6a^2b(a+b)(x+y)(x-y)-(x+y)^28a(x-y)^2-4b(y-x)a=-5 a+b+c=-5.2求代数式a^2(-b-c)-3.2a(c+b)的值
(1)2(a^2-ab)-2a^2+3ab (2)5(2x-7y)-3(4x-10y) (3)(x+y)-[3x+(-x+y)]
(1)4x(a+b)-3x²(a+b);(2)a(x-2y)-b(2y-x)-c(x-2y);(3)15a²(x-y)-5a(y-x);(4)(3x+y)(3x-y)-(x+3y)(y-3x);
多项式因式分解,(1)y(x-y)+x(x-y) (2)y(x-y)+x(y-x)(3)a(x-y)^2-b(y-x)^2 (4)a(x-y)^3-b(y-x)^3(5)a^2b(a-b)-ab^2(a-b)
(a+4)(a-3)=?(3x-1)(4x+5)=?(-4x-y)(-5x+2y)=?
1.9x^2-16(x+b)^22.(x+y)^3(x-y)-(x+y)(x-y)^33.25(x-2y)^3+4(2y-x)4.81a^5b^5-ab
(2x-y)(3x-4y)-2(x-y)(2x-5y)简便运算
5/4(x+y)(-x-y)^3*[-4/3(x-y)]*[-3/5(y-x)^2]
3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2
5x^3y(x-y)^3-10x^4y^3(y-x)^2因式分解