Answer:
The explanation in the procedure
Step-by-step explanation:
we have

solve for c




For
-----> Find the value of c
------> is not an integer
therefore
x cannot be a multiple of 6
Divde 13/143 with 13 = 1/11
X = 3 and x = -1 are the answers for both. They are exactly the same equation.
FOR COMPLETING THE SQUARE
Make in terms of ()^2 which you can do by adding numbers to both sides. Eventually it will look like this:
(2x - 1)^2 - 7 = 0
Add to both sides, take a square root and then solve.
USE THE QUADRATIC FORMULA
Be sure to solve for zero and be aware of negatives when plugging in.