9(x-2)- 6(x-2)+1=0,则x-2=
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9(x-2)- 6(x-2)+1=0,则x-2=
9(x-2)- 6(x-2)+1=0,则x-2=
9(x-2)- 6(x-2)+1=0,则x-2=
9(x-2)- 6(x-2)+1=0 [3(x-2)- 1]=0 3(x-2)- 1=0 3(x-2)=1 x-2=1/3
x+2/x+3-x+1/x+2=x+8/x+9-x+7/x+8
已知f(x),满足f(3x+1)=9X^2-6x+5,则f(x)+?
9(x-2)- 6(x-2)+1=0,则x-2=
已知x²-x-1=0,求2007+2x-x³
化简:(x+3) / x^2-3x - x-1 / x^2-6x+9)除以x-9 / 3X-x^2怎么化?
x+1÷x²-2x²÷x+1=0
X×X-3X+1=0求分式X×X÷〈X×X×X×X+3X×X+1〉
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
函数f(x)={x+2,x≦0,-x+2,x>0 则不等式f(x)≧x²的解集是
lim(√1+6x-√1-2x)/x^2+4x x趋于0
解下列一元二次方程 6x²-7x+1=0 5x²-18=9x 4x²-3x=52解下列一元二次方程 6x²-7x+1=0 5x²-18=9x 4x²-3x=52 5x²=4-2x
(X+2)(x²-6x+9)/x²-4,其中x=3.化简求值
6)x^2 2(m-1)x m 1f(x)=logaf(x)={x(x 4)(x>=0)f (x +1)-f(x )=2x且f(0)=1、则f(x )
多项式x^4+2x^3-4x^2-2x+3与x^3+4x^2+x-6的最大公因式是什么x^4+2x^3-4x^2-2x+3=(x^4+3x^3)-x(x^2+4x+3)+(x+3)=x^3(x+3)-x(x+1)(x+3)+(x+3)=(x+3)[x^3-x(x+1)+1]=(x+3)[x^3+1-x(x+1)]=(x+3)[(x+1)(
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
一道数学化简题,怎么化x+3/x^2-3x-x-1/x^2-6x+9
|x-3|+5=2x |x-3|=2x-5 两边平方得:X平方-6X+9=2X平方-20X+25,