Question

equaçao primeiro grau x^2-3x=0

Answer 1

x² -3x = 0

a = 1
b = -3

x ( x - 3 ) = 0  

x" = ax + b = 00

1x + (-3) = 0
x - 3 = 0
x = 3

x' = 0
x" = 3