Question

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

Answer 1

f(x) = 2x³ - 4x +2
calcule f(2) - f(3):
f(2) = 2.2^3 - 4.2 + 2
f(2) = 2.8 - 8 + 2
f(2)= 16 - 6
f(2) = 10

f(3) = 2.3^3 - 4.3 + 2
f(3) = 2.27 - 12 + 2
f(3) = 54 - 10
f(3)= 44

= f(2) - f(3)
= 10 - 44
= - 34

R.: - 34