Hey can you me posted picture of question : )

The roots are: and

Explanation:
First, we would need to put the equation is standard form which is as follows:
ax² + bx + c = 0
This can be done as follows:
4x² - 12x + 9 - 3 = 0
4x² - 12x + 6 = 0

By comparison, we would find that:
a = 4
b = -12
c = 6

To get the roots, we would substitute in the quadratic formula shown in the attached image.

Doing this, we would find that:
either x = 

or x = 

Hope this helps :)