Question

Seja a função f (x) = 2x2 – 3x + 13, calcule o valor de f (- 2) + f (0) + f (3).

Answer 1

f(x)=2x²-3x+13

• f(-2)

$f(-2)=2.(-2)²-3.(-2)+13$

$f( - 2) = 2.4+6+13=8+6+13=27$

• f(0)

$f(0) = 2. {0}^{2} - 3.0 + 13 = 13$

• f(3)

$f(3)=2.3²-3.3+13$

$f(3)=2.9-9+13=18-9+13$

$f(3)=22$

• f(-2)+f(0)+f(3)

f(-2)+f(0)+f(3)=27+13+22=62