1/(x^2一4x十3)十1/(x^2一8x十15)十1/(x^2-12x十35)十1/(x^2一16x十63)=
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1/(x^2一4x十3)十1/(x^2一8x十15)十1/(x^2-12x十35)十1/(x^2一16x十63)=
1/(x^2一4x十3)十1/(x^2一8x十15)十1/(x^2-12x十35)十1/(x^2一16x十63)=
1/(x^2一4x十3)十1/(x^2一8x十15)十1/(x^2-12x十35)十1/(x^2一16x十63)=
1/(x^2一4x十3)十1/(x^2一8x十15)十1/(x^2-12x十35)十1/(x^2一16x十63)=
3(2x一1)十5(1一2x)十2x十4=0怎么解
3x(2x十1)一(2x十3)(2x十3)(x一5)
解方程:(x一3)(x十1)=x(2x十3)一(x的平方十1)
一(x2十3X)十2(4X十x2),其中X=一2
计算:6x2一(2x一1)(3x一2)十(x十2)(x一2)一x(x十7)这题怎么做?
三x一4x的平方十7一3x十2x的平方十1=?.x=一3
(1)(X一3)(X一2)十18=(X十9)(X十1) (2)(3X十4)(3X一4)<9(X一2(1)(X一3)(X一2)十18=(X十9)(X十1)(2)(3X十4)(3X一4)<9(X一2)(X十3)
1/x^2一6x十8=1/x^2一4x十3x^2一6x十8和x^2一4x十3
已知x十y十2(一x一y十1)=3(1一y一x)一十(y十x一1),求x十y的值
|x-2|十|x-3|一|x-1|的最大值
x*2一3x十1=0则x*4十x*一4二多少
10(3x十2)一20=5(2X一1)一4(2x十1)
X十X十3/1一X二24
当x二-1时,求多项式3x的2次方十3一x一4x的2次方十3x十5
2x一1/3(x+1)=4x一(2X十1/2)
3一(2x一1)≥5x十4,2分之x一3
x十y+2x十2y一1x十7y=