Question

Using the quadratic formula, find the solution(s) to 3x2+18x+24=0
.

Hint: The quadratic formula is: x=−b±b2−4ac√2a

(1 point)

x = -2, x = -4

x = 4, x = 2

x = -2

x = -4

Answer 1

3x^2 + 18x + 24 = 0, with a=3, b=18, c=24.

Discriminant: b^2 − 4ac = 18^2 − 4·3·24 = 324 − 288 = 36, √36 = 6.

x = (−18 ± 6) / (2·3) = (−18 ± 6)/6 → x = −2 or x = −4.

Answer: x = -2, x = -4.