0 Comments
Answer:
C
Explanation:
x² + 6x - 7 = 0 ( add 7 to both sides )
x² + 6x = 7
to complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(3)x + 9 = 7 + 9
(x + 3)² = 16
9.4m questions
12.2m answers