Question

Dada a função f(x)= x² + 2x - 6, determine f(3)​

Answer 1

$f=x^2+2x-6, f(3)\\\\=3^2+2\cdot \:3-6\\\\=3^2+2\cdot \:3-6\\\\2\cdot \:3=6\\\\=3^2+6-6\\\\=3^2\\\\3^2=9\\\\=9$

Answer 2

Resposta:

$\textsf{Leia abaixo}$

Explicação passo a passo:

$\mathsf{f(x) = x^2 + 2x - 6}$

$\mathsf{f(3) = (3)^2 + 2(3) - 6}$

$\mathsf{f(3) = 9 + 6 - 6}$

$\boxed{\boxed{\mathsf{f(3) = 9}}}$