If a function f(x) is defined as (4x)/(1-x), what is the expression for f(x + h)

ANSWER

EXPLANATION

The given expression is

To find an expression for f(x+h), we substitute x+h, wherever we see x in the given expression.

This implies that,

We simplify to obtain;

the square root of what number? if you add that, then someone will probably answer the question.