Question

resolva as equações raiz quadrada de x mais 2 igual a 7

Answer 1

X= 47, pois √47+2=7, √49=7.

Answer 2

$\sqrt{x + 2} = 7 \\ ( \sqrt{x + 2})^2 = 7^2 \\ x + 2 = 49 \\ x = 49 - 2 \\ x = 47$