Let f(x) = x2 + 3x − 4 and g(x) = x + 5. Find f(x) ⋅ g(x).

x3 + 3x2 + 16x − 20

x3 + 5x2 + 14x − 20

x3 + 8x2 + 11x − 20

x3 + 9x2 + 19x − 20