Answer:
x² + 9x + 8 = 0
Step-by-step explanation:
A quadratic equation is expressed this way: ax² + bx + c = 0
So, so find the quadratic equivalent of (x + 2)² + 5(x + 2) – 6 = 0, we just have to do the multiplications then simplify.
(x + 2)² + 5(x + 2) – 6 = (x² + 4x + 4) + (5x + 10) - 6
After merging the terms of same degree, we get:
x² + 9x + 8 = 0
Answer:
C
Step-by-step explanation:
u2 + 5u – 6 = 0 where u = (x + 2)
ED 2021
