6x^2-5x-3=0
6(x^2-5x/6)-3=0
6(x-5/12)^2-3-25/24=0
6(x-5/12)^2=97/24
(x-5/12)^2=97/144
所以 x-5/12=√97/12 x=(5+√97)/12
或 x-5/12=-√97/12 x=(5-√97)/12
6x^2-5x-3=0
6(x^2-5x/6)-3=0
6(x-5/12)^2-3-25/24=0
6(x-5/12)^2=97/24
(x-5/12)^2=97/144
所以 x-5/12=√97/12 x=(5+√97)/12
或 x-5/12=-√97/12 x=(5-√97)/12