Question

Considere a parábola f(x) = x2 – 10x + 12, para calcular o valor de f(5) – f(2).

Answer 1

f(5) = 5x2 - 10x5 + 12
f(5)= 10- 62
f(5)= -52

f(2) = 2x2 - 10x2 + 12
f(2) = 4 - 32
f(2) = -28

f(5) - f(2)
(-52) - (-28)
= -24