Question

Math help how do I do this and what should I get for the answer

Answer 1

$f(x) = 2x + 1$
$g(x) = x ^{2} + 3x + 7$
With these 2 equations all we have to do is just substitute it for f and get

$2x + 1(x {}^{2} + 3x + 7)$
Then just apply the distributive property

Just in case see if there are other ways of doing it