Here is the answer hope this helps
Answer:
C
Step-by-step explanation:
x² + 6x = 18
To complete the square, take the coefficient of the x term, halve it, square the result, then add to both sides.
(6/2)² = 3² = 9
x² + 6x + 9 = 18 + 9
(x + 3)² = 27
x + 3 = ±√27
x = -3 ± √27
Well, there are lots, but if you get rid of the parenthesis...
you would get 21c and that equals to 7(3c).
Answer:
a
Step-by-step explanation:
