2%7D%20" id="TexFormula1" title="6 {x}^{3} + 4 + 2 {x}^{2}(15) + {x}^{2} " alt="6 {x}^{3} + 4 + 2 {x}^{2}(15) + {x}^{2} " align="absmiddle" class="latex-formula"> How do I simplify this expression? I'm starting to understand it but don't know what to do with (15)
