Question

Determine os zeros das funções a seguir;
A) 5x + 2
B) -2x
C) 2x + 8
D) 2x - 12

Answer 1

A)
5x + 2 = 0
5x = - 2
x = - 2/5

B)
-2x = 0 (-1)
2x = 0
x = 0/2
x = 0

C)
2x + 8 = 0
2x = - 8
x = - 8/2
x = - 4

D)
2x - 12 = 0
2x = 12
x = 12/2
x = 6