The roots of the quadratic equation
are
.
Here the given quadratic equation is
. Here
.
The roots are

P= 4 and -3
Move all the terms to the left side and set equal to zero. Then set each factor to zero.
Answer: 6
Step-byStep:
[(18- 8) x 3) + (4+3) x 6] divided by 12
step 1- start with the stuff in the parentheses
[(10 x 3) + (7 x 6)] divided by 12
step 2- simplify things in parentheses
[30 + 42] divided by 12
step 3- simplify even more
[72] divided by 12
step 4- remove brackets, and simply even further
72 divided by 12 = 6
Hope this helps