Match each expression on the left with the equivalent product on the right, if

$\displaystyle{f{{\left({x}\right)}}}={4}{x}-{9}\usepackage{cmbright}\Huge\$

$\displaystyle{g{{\left({x}\right)}}}={4}{x}+{9}\usepackage{cmbright}\Huge\$

$\displaystyle{h}{\left({x}\right)}={4}{{x}}^{{2}}+{x}-{9}\usepackage{cmbright}\Huge\$

Some answer choices on the right will not be used.