Question

si f(x)=x2+2x-3 determinar
f(-2)
f(0)
f(2)

Answer 1

Respuesta:

$f( - 2) = {( - 2)}^{2} + 2 \times ( - 2) - 3 = 4 + ( - 4) - 3 = 4 - 4 - 3 = - 3$

$f(0) = {0}^{2} + 2 \times 0 - 3 = 0 + 0 - 3 = - 3$

$f(2) = {2}^{2} + 2 \times 2 - 3 = 4 + 4 - 3 = 8 - 3 = 5$