化简3x^2y+(2x-5x^2y)还有2x-(2-5x),a-(2a-3b)+(3a-4b),8x+2y+2(5x-2
化简3x^2y+(2x-5x^2y)还有2x-(2-5x),a-(2a-3b)+(3a-4b),8x+2y+2(5x-2
(2x+y)(2x-3y)+x(2y+y) 2a(x-y)-4b(x-y)
因式分解 (1)6(x-y)^3-3y(y-x)^2 (2)x(x-y)(a-b)-y(y-x)(
分解公因式p(x-y)-q(y-x)(a+b)(a-b)-(b+a)10a(x-y)^2-5b(y-x)3p(m-2n)
①3a(5a-2b) ②(x-3y) ×(-6x) ③化简x(x-1)+2x(x+1)-3x(2x-5)
求大手啊6xy[x^2(5x+3)-3x^2(-4y)] 还有 [(a+b)(a-b)-(a-b)^2]除以4b 还有[
5a+2b+(3a-2b) -3x-(x+1)+(4x+2) -2/1(x+y)+3/1(x-y)
分解因式1.2a(x-y)-3b(y-x)2.-x^y-2xy+35y3.a^(x-y)-4b^(x-y)若|a+2|+
计算:(2a-5b)(2a^2-3ab+b^2) (3x+2y)(2x+3y)-(x-3y)(3x+4y)
化简 2x-[3y-5x-(-2x-7y)]等于 ( ) A:-7x+10y B:5x+4y C:-x-4y D:9x-
3a(x+y)-2b(x+y)=(x+y)(?)
8x+2y+(5x-2y) X^2+(-3x^2-2y+1) 3a-(4b-2a+1)