Question

2x ao quadrado +12x+18=0

Answer 1

2x² + 12x + 18 = 0

delta = 12² - 4.2.18
delta = 144 - 144
delta = 0

x = -12 ± √0/2.2

x = -12 ± 0/4 = -12/4 = -3

s={ -3 }