(a) Using laws of logarithms, write the expression below as a single logarithmic expression which does not contain the logarithm of a product, quotient, or power. Enter $\log_2(x)$ as log2(x).

$\displaystyle \displaystyle \log_{2} x + \log_{2} x^{13} =$ help (logarithms)

(b) Use your answer from part (a) to evaluate the derivative.

$\displaystyle \frac{d}{dx} \left( \displaystyle \log_{2} x + \log_{2} x^{13} \right) =$ help (formulas)