Compute the derivative of the given function in two different ways.

a) Use the Product Rule, $[fg]' = f\cdot g' + f' \cdot g$. (Fill in each blank, then simplify.)

$h'(s) = \Big($ $\Big) \cdot \Big($ $\Big) + \Big($ $\Big) \cdot \Big($ $\Big)$
= .

b) Use algebra first to simplify $h$, then differentiate without the Product Rule.

$h'(s) =$ .