Hey can you me posted picture of question : )

The roots are -1/3 and -2

Explanation:
First we wpild need to put the equation in the standard form which is as follows:
ax² + bx + c = 0
This can be done as follows:
3x² + 7x + 8 = 6
3x² + 7x + 8 - 6 = 0
3x² + 7x + 2 = 0
By comparison:
a = 3
b = 7
c = 2

Now, to get the roots, we would need to use the quadratic formula shown in the attached image.

By substitution, we would find that:
either x = 

or x = = -2

Hope this helps :)

Distance=slopeslope is -2/4which equals-1/2the distance between these two points is -1/2