Product Rule

1)

Differentiate each function using the two

different methods presented below. Compare

your answers in each case.

i) Expand and simplify each binomial product

and then differentiate.

ii) Apply the product rule and then simplify.

a) f(x) = (x+4)(2x-1)

b)

h(x)=(5x-3)(1-2x)

c) h(x) = (x+1)(3x+8)

d) g(x)=(2x-1)(4 – 3x)