Question

ME AJUDEM VALENDO 46 PTS
PARA OQ FZR TD CERTO

Answer 1

f(x) = x² + 4x -12 = 0

a) f(0) = 0² + 4.0 - 12 = 0
    F(0) = -12

b) f(1/2) = (1/2)² + 4(1/2) - 12
    f(1/2) = 1/4 + 2 - 12
    f(1/2) = 1/4 - 10
    f(1/2) = - 39 
                 4
c) f(-3) = (-3)² + 4(-3) - 12
    f(-3) = 9 - 12 - 12
    f(-3) = -15