Question

Given that f ( x ) = 5 x − 7 and g ( x ) = 5 x , find a simplified expression for f ( g ( x ) )

Answer 1

Given:

f(x) = 5x-7

g(x) = 5x

Solution;

f(g(x)) = 5(g(x))-7

= 5(5x)-7

= 25x-7