Given the function f(x)=\frac{1}{5}-\frac{7}{3}x^2f(x) = 5 1 ​ − 3 7 ​ x 2 , find the value of f(\frac{3}{5})f( 5 3 ​ ) in simplest form.

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.