Question 665703

{{{(3x + 2)(3x - 2)}}}

{{{9x^2-6x+6x -4}}}

{{{9x^2-cross(6x)+cross(6x) -4}}}


{{{9x^2-4}}}...your answer


now recognize a particular factoring formula leads to the same answer

{{{9x^2-4}}}....{{{9x^2}}} we can write as {{{(3x)^2}}} and {{{4}}} as {{{2^2}}}

{{{(3x)^2-2^2}}}....here we have the difference of two squares and we use  the application of the formula

    {{{a^2 - b^2 = (a+b)(a-b)}}}

so, {{{(3x + 2)(3x - 2)}}}