Problem

and h, left parenthesis, x, right parenthesis, equals, start fraction, x, start superscript, 3, end superscript, minus, 4, divided by, 9, end fraction
Write simplified expressions for f, left parenthesis, h, left parenthesis, x, right parenthesis, right parenthesis and h, left parenthesis, f, left parenthesis, x, right parenthesis, right parenthesis in terms of x.
f, left parenthesis, h, left parenthesis, x, right parenthesis, right parenthesis, equals
h, left parenthesis, f, left parenthesis, x, right parenthesis, right parenthesis, equals
Are functions f and h inverses?
Please choose from one of the following options.