Answer:
The answer is C.
Step-by-step explanation:
Given that f(x) = 2x + 3 and g(x) = x + 1. So you have to multiply both functions together :
[tex]f(x) = 2x + 3 \\ g(x) = x + 1[/tex]
[tex]f(x) \times g(x)[/tex]
[tex] = (2x + 3)(x + 1)[/tex]
[tex] = 2x(x) + 2x(1) + 3(x) + 3(1)[/tex]
[tex] = 2 {x}^{2} + 2x + 3x + 3[/tex]
[tex] = 2 {x}^{2} + 5x + 3[/tex]
