解方程3【2x+1】【2x-1】-2【3x+2】【2-3x】-25²=-6

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/25 02:00:00
解方程3【2x+1】【2x-1】-2【3x+2】【2-3x】-25²=-6解方程3【2x+1】【2x-1】-2【3x+2】【2-3x】-25²=-6解方程3【2x+1】【2x-1】

解方程3【2x+1】【2x-1】-2【3x+2】【2-3x】-25²=-6
解方程3【2x+1】【2x-1】-2【3x+2】【2-3x】-25²=-6

解方程3【2x+1】【2x-1】-2【3x+2】【2-3x】-25²=-6
3【2x+1】【2x-1】-2【3x+2】【2-3x】-25²=-6
3【2x+1】【2x-1】+2【3x+2】【3x-2】-25²=-6
3(4x²-1)+2(9x²-4)-25²=-6
x=±√21

3(4x^2-1)+2(9x^2-4)-25^2=-6
12x^2-3+18x^2-8-25^2=-6
30x^2=25^2+5
6x^2=25*5+1
6x^2=126
x^2=21
x=正负根号21

解3(4x^2-1)+2(9x^2-4)-25^2=-6
12x^2-3+18x^2-8-25^2=-6
30x^2=25^2+5
6x^2=25*5+1
6x^2=126
x^2=21
x=正负根号21

3(4x^2-1)+2(9x^2-4)-25^2=-6
12x^2-3+18x^2-8-25^2=-6
30x^2=25^2+5
x^2-21=0
(x-√21)(x+√21)=0
x=√21或x=-√21