Question 1032757
<pre><b>
               simplify             expression                                     
Please help me {{{cross(solve)}}} this algebra {{{cross(question)}}}.
      
{{{  (4a+3b)^2-(4a-3b)^2+48ab  }}}

{{{  (4a+3b)(4a+3b)-(4a-3b)(4+3b)+48ab  }}}

{{{  (16a^2+12ab+12ab+9b^2)-(16a^2-12ab-12ab+9b^2)+48ab  }}}

{{{  (16a^2+24ab+9b^2)-(16a^2-24ab+9b^2)+48ab  }}}

{{{  16a^2+24ab+9b^2-16a^2+24ab-9b^2+48ab  }}}

{{{  cross(16a^2)+24ab+cross(9b^2)-cross(16a^2)+24ab-cross(9b^2)+48ab  }}}

{{{  24ab+24ab+48ab  }}}

{{{96ab}}}

Edwin</pre></b>