3(5x-3)²-48=0
问题描述:
3(5x-3)²-48=0
答
(5x-3)²=16
5x-3=±4
x1=7/5
x2=-1/5
3(5x-3)²-48=0
(5x-3)²=16
5x-3=±4
x1=7/5
x2=-1/5