Question

Dada a função definida por: f (×)=×2-5×-10
Calcule:
A- F (4)
B- F (-2)

Answer 1

A) 4^2-5.4-10=
16-20-10= -14

B)-2^2-5(-2)-10=
4+10-10=4

Answer 2

a) f(4) = 4^2 -5.4 - 10; f(4) = 16-20-10; f(4) = - 14; b) f(-2) = (-2)^2 - 5.(-2)-10; f(-2) = 4 +10 - 10; f(-2) = 4