6x^2十x一2
6x^2十x一2
(2x三次方一x十6)x(3x2十5x一2)
(一x十2x的平方十5)十(4x的平方一3一6x)
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?
6x一4≤3 2一X≤X十3 3X一2>X十8
5x十2x=42 15十2x一3=48 2x十3x十17=37 6x一3x=6÷5 9x一2x=15x十2x=4215十2x一3=482x十3x十17=376x一3x=6÷59x一2x=1.4十0.077(2x一6)=15.4
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;
解方程;多项式乘多项式这一章;(x一1)(x十6)=(x十2)(x十4)
x^2(x十3)十x(x^2一3)十3x(x^2+x一1) 用不用化到x(5x^2十6x一6) 数学题
x(3x十2)一6(3x十2)=0解方程
一(x2十3X)十2(4X十x2),其中X=一2
(7一2X十x平方)一(5十3X一2x平方)
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^2一6x十8=1/x^2一4x十3x^2一6x十8和x^2一4x十3
解方程:43一2(5十3X)二3十6(x一1)
5(x一2)十8<6(x一l)十7
(x十2y一z)(x一2y十z)一(x十2y十z)2
(x^2一2x)^2十2(x^2一2x)十1