Question

Dada a função de(x) =2x³-4x+2,calcule f(1) - f(3)

Answer 1

Resposta:

F(x) = 2x³-4x+2

F(1) = (2 × 1)³ - 4 × 1 + 2

F(1) = 2³ - 4 + 2

F(1) = 8 - 4 + 2

F(1) = 2

F(x) = 2x³-4x+2

f(3) = (2 × 3)³ - 4 × 3 + 2

f(3) = 216 - 12 + 2

f(3) = 206

f(1) - f(3)

2    -  206 =

=  -204