Question 156370
{{{3(2x-1)(2x+1)-2x}}} Start with the given expression



{{{3(4x^2-1)-2x}}} FOIL {{{(2x-1)(2x+1)}}} to get {{{(2x-1)(2x+1)=4x^2+2x-2x-1=4x^2-1}}}



{{{12x^2-3-2x}}} Distribute



{{{12x^2-2x-3}}} Rearrange the terms.



So {{{3(2x-1)(2x+1)-2x}}} simplifies to {{{12x^2-2x-3}}}