Question 607144
2x^2-5x-12=0 
use quadratic formula or completing the square method
using quadratic formula is better but let me use completing the square method
2x2-5x=12
2(x^2-5/2x)=12
2(x^2-5/2x+25/16)=12+25/8
2(x-5/4)^2=121/8
(x-5/4)^2=121/16
(x-5/4)=+ or - square root of 121/16
(x-5/4)=11/4 or (x-5/4)=-11/4
x=11/4+5/4 or x=5/4-11/4
x=16/4 or x=-6/4
x=4 or x=-3/2
(lawdej@yahoo.com)