Respuesta :
Answer:
Step-by-step explanation:
3x² + 8x = 12
3x² + 8x - 12 = 0
a=3, b=8, and c=-12. Solving with quadratic formula:
x = [ -b ± √(b² - 4ac) ] / 2a
x = [ -8 ± √(8² - 4(3)(-12)) ] / 2(3)
x = (-8 ± √208) / 6
x = (-8 ± 4√13) / 6
x = -4/3 ± 2/3 √13