Question

O zero da função F(x) = 2x + 4 é?

Answer 1

f(x)  = 2x + 4
0 = 2x + 4
-2x = 4
x = 4/-2
x = -2

Answer 2

f(x) = 2x + 4
0 = 2x + 4
- 4 = 2x
2x = - 4
x = - 4/2
x = - 2

Resp.: x = - 2