 x^{2} + (x+1)^{2} =25&lt;/p&gt;&lt;p&gt;&nbsp;&amp;#10;&amp;#10; x^{2} + x^{2} +2x+1=25&amp;#10;&amp;#10;2 &lt;/p&gt;&lt;p&gt;x^{2} +2x-24=0 simplificando&nbsp;&nbsp;&nbsp;&nbsp; &lt;/p&gt;&lt;p&gt;&lt;span&gt;2 x^{2} +2x-24=0&lt;/span&gt;&amp;#10;(da&iacute; faz baskara ou produto e soma e acha as ra&iacute;zes da equa&ccedil;ao&lt;/p&gt;&lt;p&gt;x=- 4&amp;#10;x=3&amp;#10;&amp;#10;&amp;#10;