# Algebra

posted by
**Hope**
.

Use the quadratic formula to solve the equation. Give exact answers:

2x^2 -1 = 6x.

The choices are:

a) -3 + square root(7)/2, -3 - square root(7)/2

b) 3 + square root(11)/2, 3 - square root(11)/2

c) 3 + square root(7)/2, 3 - square root(7)/2

d) -3 + square root(11)/2, -3 - square root(11)/2

I attempted this problem but got none of these answers! Could you please walk me through the problem and tell me which answer is correct? Thank you so much! :)