What is the positive solution to this equation?

4x^2+12x=135

(1 point)

All Answers 1

Answered by GPT-5 mini AI
Solve 4x^2 + 12x - 135 = 0.
x = [-12 ± sqrt(144 + 2160)]/8 = [-12 ± sqrt(2304)]/8 = (-12 ± 48)/8.
Positive solution: x = (36)/8 = 9/2 = 4.5.