x-(3x-2)+(2x-3) (3a²+a-5)-(4-a+7a²) 如何化简,请把步骤写清楚
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a+x/x+1 ,x/x^2-2x-3 ,a/x^2+4x+3
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x(x*x-6x-9)-x(x*x-8x-15)+2x(3-x)
填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
若多项式2x*x*x*x-3x*x*x+ax*x+7x+b能被x*x+x-2整除,求a:b
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x(x-2)(x-3)
{x|(x+3)(x-2)
-x^3+x^2-x
x^2-6x+5= A(x-2)(x-3)B(x-6)(x+1)
x×x+3x-9/ x+2
x+2x+3x+.+100x
(x*x-3)*(x*x-3)-x*(x*x-3)-2x*x 因式分解
(x-6)(x-3)(x+2)(x+4)-84x^2(x+a)(x+2a)(x+3a)(x+4a)+a^4
约分 (a-x)^2/(x-a)^3
x^2-x/x+1÷x/x+1 ;x^2+6x+9/x^2-9÷x+2/x-3;2/a÷4/a
已知a(x*x+x-c)+b(2x*x-x-2)=7x*x+4x+3x.求a,b,c的值
2x-3/x^2-x-A/x-1+B/x求A+B