16x^2-361=0 （x-1）^2=25
问题描述：
16x^2-361=0 （x-1）^2=25
答
16x^2-361=0
16x^2=361
x^2=361/16
x1=19/4 x2=-19/4
（x-1）^2=25
x-1=±5
x=1±5
x1=6 x2=-4