Question

Dada a função f(x)= -x²-2 , o valor de f(-1) + f(0) + f(1) é:

Answer 1

f(-1) = - (-1)2 -2 = -3

f(0) = -(0)2 -2 = -2

f(1) = -1-2=-3
portanto
-3-2-3=-8

Answer 2

f(x) = -x²-2

f(-1) = -(-1)²-2 = -(1)-2= -1-2 = -3
f(0) = 0-2 = -2
f(1) = -(1)²-2 = -1-2 = -3

f(-1)+f(0)+f(1) = -3-2-3 = -8