Question

sendp f(x) =x^2-2x-3 calcule
A) f(2)
B) f(-2)
C) f(-5)
D) f (0)
E) f(3)+f(-3)

Answer 1

Resposta:

a) 2^2-2.2-3=-3

b)(-2)^2-2.(-2)-3=13

c)(-5)^2-2.(-5)-3=32

d) 0^2-2.0-3=-3

e)[(3)^2-2.3-3]+[(-3)^2-2.(-3)-3]=0+12=12