Question

x²= 3²+2² teorema de Pitágoras

Answer 1

$x^{2} =3 ^{2} +2 ^{2} \\ x^{2} =9+4\\x= \sqrt{13}$

Answer 2

$x^{2} =3^2+2^2\to\\\\ x^{2}= 9+4\to\\\\ x^{2} =13\to\\\\ \boxed{x= \sqrt{13} }$