Question

Dada a função quadrática f(x)=2x^2+6x-4,calcule:
a) f(0)
b) f(-2)

Answer 1

a) F(0) = 2. (0)² + 6 .0 -4
F(0) = 2.0 + 0 - 4
F(0) = 0 + (-4)
F(0) = -4

b) F(-2) = 2. (-2)² + 6 . (-2) -4
F(-2) = 2. 4 + (-12) - 4
F(-2) = 8 -12 -4
F(-2) -4 - 4
F(-2) = -8