Question

Sendo f(x)= 5x-7 calcule o valor de f(3)+ f(2)

Answer 1

f(3) + f(2) = 8 + 3 = 11

f(x) = 5x - 7

f(3) = 5 . 3 - 7

f(3) = 15 - 7

f(3) = 8

f(2) = 5 . 2 - 7

f(2) = 10 - 7

f(2) = 3

f(3) + f(2)

8 + 3

11

Answer 2

• f(3)

 f(3) = 5 . 3 - 7

 f(3) = 15 - 7

 f(3) = 8

• f(2)

 f(2) = 5 . 2 - 7

 f(2) = 10 - 7

 f(2) = 3

• f(3) + f(2)

 8 + 3 = 11

Resposta: 11