Question

ajutor urgent!!!!!!!!

Answer 1

√(x+4) = 5   I²  => x+4 = 25  => x = 25-4 => x = 21

Answer 2

$\sqrt{x + 4} = 5 \\ \\ { \sqrt{x + 4} }^{2} = {5}^{2} \\ \\ x + 4 = 25 \\ \\ x = 25 - 4 = 21 \\ \\ \sqrt{21 + 4} = 5 \\ \\ 5 = 5 \\ \\ = > x = 21$