Question

dada la funcion f(x)=2^2+x-1 evaluar f(2)

Answer 1

evaluar para f(2) es sustituir x

$f(x) = {2}^{2} + x - 1\\ f(2) = {2}^{2} + 2 - 1 \\ f(2) = 4 + 1 \\ f(2) = 5$