Question

y=3x^2-6x-5 still confused, need x intercept

Answer 1

to find the x-intercept you need to factor this

Answer 2

use quadratic or factorise so that u can have x int

Answer 3

when i factor i get x=5 or x












I think i am factoring wrong

Answer 4

You have a parabola.
See http://www.wolframalpha.com/input/?i=y%3D3x%5E2-6x-5+
It has x-intercepts when y=0.
so use the quadratic formula (if you know it)