Oi ✅
2x² - 32 = 0
2 (x² - 16) = 0
x² - 16 = 0
x = -b + √b² - √4ac
x² - 16 = 0
a = 1
b = 0
c = -16
x = -0 + √0² √-4 . 1 √(-16) / 2. 1
x = -0 + √0 √-4 . 1 √(-16) / 2. 1
x = 0 + √0 + 64 / 2 . 1
x = 0 + √64 / 2 . 1
x = 0 + 8 / 2
x + 0 - 8 / 2
x = 4
x = -4
Espero ter ajudado.
