Question

1) Dada a função f(x) = x² – 3x – 10, Calcule:
a) F(-3) =
b) F(-4) =
c) F(0) =
d) F(X)=0 ​

Answer 1

f(-3) = 8

f(-4) = 18

f(0) = -10

f(x) = 0 [ x = -2 ]

Answer 2

f(x) = x² – 3x – 10

A) f(-3) = (-3)² – 3(-3) – 10 = 9 + 9 - 10 = 8

B) f(-4) = (-4)² – 3(-4) – 10 = 16 + 12 - 10 = 18

C) f(0) = (0)² – 3(0) – 10 = 0 - 0 - 10 = -10

D) f(X) = (-2)² – 3(-2) – 10 = 0

    X = -2

 Espero ter ajudado!