Question

Qual é a raiz quadrada de 648?

Answer 1

√648 =25,455... aproximadamente

Ok!!!

Answer 2

    Em função de seus fatores primos
                  648/2
                  324/2                 
                  162/2
                    81/3                  
                    27/3
                      9/3
                      3/3
                      1          
                                        648 = 2^3x3^4
                          
           $\sqrt{648} \\ \\ = \sqrt{2^3x3^4} \\ \\ = \sqrt{2^2x2c(3^2)^2} \\ \\ =2x3^2 \sqrt{2} \\ \\ =18 \sqrt{2}$
 
          Caso precise valor numérico use $\sqrt{2} = 1,4142$

         $\sqrt{648} = 18(1,4142) =25,4556$

        Para usos práticos, 25,46