Question

Seja f(x) = x^2 - 2x + 3, calcule f(1)

Answer 1

Se x=1, então:
${1}^{2} - 2 \times 1 + 3 = 1$

Answer 2

f(x) = x^2 - 2x + 3

f(1) = 1^2 - 2.1 + 3
f(1) = 1 - 2 + 3
f(1) = -1 + 3
f(1) = 2