(x十1)一2(x十1)(2一x)+(2一x)=0用分解公因式法怎么解?
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(x十1)一2(x十1)(2一x)+(2一x)=0用分解公因式法怎么解?
(x十1)一2(x十1)(2一x)+(2一x)=0用分解公因式法怎么解?
(x十1)一2(x十1)(2一x)+(2一x)=0用分解公因式法怎么解?
等于[(x+1)+(2-x)]^2=0
[(x+1)-(2-x)]=0
(2x-1)=0
x=1/2
(X的平方十X十1)(X的平方十X十2)一12
(X十2)²一(X一1)(X十1)怎样计算?
分解因式(x'2十x一6)(x'2十x一8)一24;(x十1)(x一2)(x一3)(x一6)十20;
(x的次方一X十4)X一(X一1)(x的次方十2)=x十7
(X十y)的平方一2X一2y十1分解因式
(X十y)的平方一2X一2y十1分解因式
分解因式(x十1)(x十2)(x十3)(x十6)一3x'2;3x(3x一2)一a(a十2)
(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(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)
(x十1)(x一1)十2(x十3)=8 解方程
(X十2)(X一13)一16=(X十3)( )
-x十(2X一2)一(3x十5)
化简求值:(X一3)(X一2)十(X一1)(X十3)一2(X平方一X十8)(其中X=6).
X(2X一1)十4X一2=0
x十y+2x十2y一1x十7y=
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)
(x^2一2x)^2十2(x^2一2x)十1
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)=