Question

Given f(x) = x^2 + 7x and g(x) = x^4 choose the expression for (f ° g)(x)

Answer 1

Answer:x^8+7x^4

Explanation:

First we have to do the g(x) cause it's closest to x.

g(x)=x^4

x^4 is the output for g(x) ad input for f(x). So now we have to put it in x's place in here➡️f(x)

So, f(x^4)=(x^4)^2+ 7(x^4)

=x^8+7x^4

It's the final output