Question

use the completing square method 4X^2 - X - 3 = 0

Answer 1

did you try
4x^2 - x = 3

Answer 2

yeah i tried that but my biggest problem is i don't know what to do with the
4X^2 - X
when i try use that the equation turns really ugly and far from the answer which are
x=1 and x=4