Question

1. Si f(x) = 5x – 6 y g(x) = x + 4
a) f(x) + g(x) =
b) f(x) * g(x) =

Answer 1

$f(x) = 5x - 6 \: \: g(x) = x + 4 \\ f(x) + g(x) = 5x - 6 + x + 4 \\ = 6x - 2 \\ f(x) \times g(x) = (5x - 6)(x + 4) \\ = 5{x}^{2} + 14x - 24$