Question

E se for em 3X2+55=0

Answer 1

Se for $3x^{2} + 55 = 0$ :

$X (3X + 55) = 0$
$X = 0$
$3X + 55 = 0$
$3X = -55$
$X = \frac{-55}{3}$
$X = -18,333...$

$S = { 0, -18,333...}$