Question

XE%7B2%7D%20" id="TexFormula1" title="x { }^{2} + 2xy + y {}^{2} - x {}^{2} " alt="x { }^{2} + 2xy + y {}^{2} - x {}^{2} " align="absmiddle" class="latex-formula">
​

Answer 1

Hope it helps with your work one of them is simplified

Answer 2

Get the app math photo is helps :)