Question

Using the function find f(g(x))
f(x)= 7x-3
g(x)=x^2+5

Answer 1

\(\bf f(x)= 7x-3\qquad \qquad g(x)=\color{red}{x^2+5}\\ \quad \\
f(\quad g(x)\quad ) = 7(\color{red}{x^2+5})-3\)

Answer 2

How you solve for it is you take the expression for g(x) and plug that it as the value for x in the f(x) function.

Answer 3

ooh , my bad , i f(g(x)) = (f o g)(x)

Answer 4

So it would be 7(X^2+5-3) and i solve that?

Answer 5

F(g(x)) = 7(x^2 +5) -3
= 7x^2 + 35 -3
= 7x^2 + 32

Answer 6

No, you don't solve for that, that is the answer. ^

Answer 7

Alright thank you!