Question

equacão do 2 grau 4x−12x=0

Answer 1

$4 x^{2} - 12x = 0 \\ 4x ( x - 3 ) = 0 \\ \\ 4x = 0 \\ x = 0 \\ \\ x - 3 = 0 \\ x = 3$

S = { 3 e 0 }