Question

Let f(x) = x2 + 3x – 4 and g(x) = x + 5. Find f(x) • g(x)

Answer 1

Distrubute each term on the left with each term on the right systematically until have been multiplied.
Then combine like terms.

Answer 2

\[(x ^{2}+3x-4)(x+5)\]Each term on the left times each term on the right.\[x ^{2}(x)+3x(x)-4(x)+x ^{2}(5)+3x(5)-4(5)\]Simplify.
Then combine terms that have the same powers of x.