The equation $\displaystyle{3}{{\left({x}+{1}\right)}}^{{2}}={8}{x}-{1}\usepackage{cmbright}\Huge\$ can be rewritten in standard form with $\displaystyle{a}={3}\usepackage{cmbright}\Huge\$ . When it is rewritten this way, what is the value of b?

The value of $\displaystyle{b}=\usepackage{cmbright}\Huge\$ _____.