Question

determine a derivada

y= log2 (x³+2x)

Answer 1

$\displaystyle y=\frac{\ln (x^3+2x)}{\ln 2}\\ \\ y'=\frac{1}{\ln 2}\cdot \frac{(x^3+2x)'}{x^3+2x}\\ \\ \\ \boxed{y'=\frac{1}{\ln 2}\cdot \frac{3x^2+2}{x^3+2x}}$