Solve equation by using the quadratic formula. 9x^2 + 24 x = - 16

x = - 4/3 or x = - 4/3

Step-by-step explanation:

Solve for x over the real numbers:

9 x^2 + 24 x = - 16

Hint: | Move everything to the left hand side.

Add 16 to both sides:

9 x^2 + 24 x + 16 = 0

Hint: | Using the quadratic formula, solve for x.

x = (-24 ± sqrt (24^2 - 4*9*16)) / (2*9) = (-24 ± sqrt (576 - 576)) / 18 = (-24 ± sqrt (0)) / 18 = (-24 ± 0) / 18:

Answer: x = - 4/3 or x = - 4/3