Answer :
Answer:
see explanation
Step-by-step explanation:
Substitute x = - 4 into the equation and solve for h
3(- 4 + h)² = 75 ( divide both sides by 3 )
(- 4 + h)² = 25 ( take the square root of both sides )
-4 + h = ± [tex]\sqrt{25}[/tex] = ± 5
Add 4 to both sides
h = 4 ± 5
h = 4 - 5 = - 1 or h = 4 + 5 = 9
Hence h = - 1, 9