Question

X al cuadrado menos 64 igual a cero

Answer 1

x es igual a 8

${x}^{2} - 64 = 0 \\ x = \sqrt{64} \\\fbox{ x = 8 }$

comprovemos

${8}^{2} - 64 = 0 \\ 64 - 64 = 0 \\ 0 = 0$

Answer 2

x es igual a 8

${x}^{2} - 64 = 0 \\ x = \sqrt{64} \\\fbox{ x = 8 }$

comprovemos

${8}^{2} - 64 = 0 \\ 64 - 64 = 0 \\ 0 = 0$