解方程3|x|-5=|x|-2/2+1
更新时间:2022-02-23 02:14:16 • 作者:ROSIE •阅读 3461
3(x一2)=2一5(x一2)这个方程怎么解
3(x-2)=2-5(x-2)
3x-6=2-5x+10
8x=18
x=9/4
解这个方程:3(x-5)²=2(5-x)
3(x-5)²=2(5-x)
3(x-5)²+2(X-5)=0
(x-5)(3x-15+2)=0
(x-5)(3x-13)=0
x1=5,x2=13/3
3(x-5)²=2(5-x) {用因式分解法解方程}
3(x-5)²=2(5-x)
3(x-5)²-2(5-x)=0
3(x-5)²+2(x-5)=0
(x-5)[3(x-5)+2]=0
(x-5)(3x-13)=0
所以x-5=0或3x-13=0
所以x=5或x=13/3
3(X-5)^2=2(5-X)这个二元一次 要步骤和解法
3(X-5)^2 =2(5-X)
3(X-5)^2= -2(X-5)
3(X-5)^2+2(X-5)=0
(X-5)[3(X-5)+2]=0
(X-5)(3X-15+2)=0
(X-5)(3X-13)=0
X=5 or X=(13/3)