Question

Calcule as raízes da função: g(x) = x2- 9x

Answer 1

x²-9x=0
x(x-9)=0
x=0
x-9=0
x=9

Answer 2

g(x) = 0

0 = x² - 9x
x² - 9x = 0
x(x - 9) = 0
x = 0

x - 9 = 0
x = 9

R.: x = 0 e x = 9