（x-1)(x-3)+1（ab+a)+(b+1)

（x-1)(x-3)+1（ab+a)+(b+1) 计算题：① ＜(x-1／x+1)-(x+1／x-1)＞÷x+3/x*x+4x+4)② (a*a-2ab+b*b)/(a*a+ab)*(a+b)/(ab-b*b)③ (2x/x*x-1)-1/(x-1)④ -a-6约分：① 1/2*x*x*y ,1/3*x*y*y② 1/(2x+2) ,3/(x*x-1)化简：① (3+x)/(2+x)+(x*x-4) (-2a²b)³(-3ab³)² -2ab(a-2)² (x+1)(x²-x+1) 计算5ab^3*(-3/4a^3b^2)*(-2/3ab^4c)^3 x(x-1)(x+3)-x^2(x+1)+3x-1 已知分式方程3x-4/(x-1)(x-2)=A/x-1+B/x-2,求整式AB. (x+2)(x-2)-4y(x-y)3ab(x^2+1)+x(a^2+b^2) 因式分解 因式分解：1.1+a+b+c+ab+bc+ca+abc 2.x*x*x*x*x*x*x*x+x*x*x*x+1 (1)2（a^2-ab)-2a^2+3ab (2)5(2x-7y)-3(4x-10y) (3)(x+y)-[3x+(-x+y)] 2x*5x^3 3x^3*(-1/3x) 3x*(-2x^2) a*(x-y) x^2*(1-x-x^2) (a^2+2ab+3a^2b) (x2+x-3)/(x-1)(x-2)(x-3）=A/(x-1)+B/(x-2)+C/(x-3).求AB的值 1+(b*b-a*a)x-ab*b*x*x*x因式分解 (-2ab^2)^3·(ab^2-3a^2b-1/2a^3)-5x^2(x^2-2x-4)=5x(x^3-2x^2-4x-1）+4x (a-2x)(b-2x)=1/2ab,用ab表示x (X²+4x+8)²+3x(x²+4x+8)+2x²因式分解 (X²+4x+8）²+3x(x²+4x+8)+2x²（2x²-3x+1)²-22x²+33x-1(x²+x+1)(x²+x+2)-12(6x-1)(2x-1)(3x-1)(x-1)+x²ab(a+b)²-(a+b)²+1x²+xy-6y 解方程：（2x-3x-2）a+（1-x）b-ab（1+x）=0 合并同类项 6x^2-2x-4x^2+5x+1-ab^3+3b^3a 六道因式分解的题.(x+y)^4+(x+y)^2-20(x^2+7x+6)(x^2+7x-8)+45(x-1)(x+2)(x-3)(x+4)+24(a+b-2ab)(a+b-2)+(1-ab)^2(a^2+a+1)(a^2-6a+1)+12a^24x^3-31x+15 x=3,分式x+a/3x-b的值为0,x=1,无意义求ab