1-x+x^2/4(a-2b)^2-14(a-2b)+49
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已知集合A={x|(x-2)*(x+1)>0},B={x|4x+a
A=2x^2-7x+1 B=4x^2+2-14x 求2A-B
4x+1/(x-2)(x-5)=a/x-2+b/x-5
已知-x+4/x(x-1)(x+2)=A/x+B/x-1+C/x+2(A,B,C为常数),求A,B,C的值
2x-3/x^2-x-A/x-1+B/x求A+B
已知:(4x+1)/(x-2)(x-5)=A/(x-5)+B/(x-2),则A= ,B=已知:(4x+1)/(x-2)(x-5)=A/(x-5)+B/(x-2),则A= ,B=
x/a^2-bx+x/b=1 (a,b不等于0)x-8/x-3-x-9/x-4=1/x+3-1/x+8
2x+b(1-x)/a
已知3x-4/(x-1)(x-2)=A/x-1+B/x-2,求A,B的值
已知3X-4/(x-1)(x-2)=A/X-1+B/X-2求整式A,B
1/4(a-b)^2x(b-a)^3x(-a-b)^5x(2a+2b)^4
4x+1/x^2-7x+10=A/X-2 +B/x-5 求A ,B的值
已知:4x+1/(x-2)(x-5)=A/x-5+B/x-2,求A、B的值?
4x+1/x^2-7x+10=A/X-2 +B/x-5 求A ,B的值
已知:4x+1/(x-2)(x-5)=A/x+5+B/x-2,求A,B的值
已知4x+1/(x-2)(x-5)=A/x-5 - B/x-2,求A-B的平方根
3x/6x^2z a+b/a^2-b^2 x^2+2x+1/x^2+x 3x-6/x^2-4x+43x/6x^2z a+b/a^2-b^2x^2+2x+1/x^2+x3x-6/x^2-4x+4y-x/x^2-y^22x^2-10x/x^2-10x+25约分:3x/6x^2z a+b/a^2-b^2x^2+2x+1/x^2+x3x-6/x^2-4x+4y-x/x^2-y^22x^2-10x/x^2-10x+25
(2X+1)/(x-3)(x+4)=A/(x-3)+B/(x+4) 求A.B的值.