Question

f(x) = Raiz de 4x ao cubo + 5x - 2 sobre x- 1 +2.... calcule o valor de f(x) considerando x=3​

Answer 1

$f(x) = \frac{ \sqrt{4 {x}^{3 } + 5x - 2} }{x - 1 + 2} \\ f(3) = \frac{ \sqrt{4 \times {3}^{ {3} } + 5 \times 3 - 2} }{3 - 1 + 2} \\ f(3) = \frac{ \sqrt{4 \times 27 + 15 - 2} }{4} \\ f(3) = \frac{ \sqrt{108 + 13} }{4} \\ f(3) = \frac{ \sqrt{121} }{4} \\ f(3) = \frac{11}{4}$