Question

Алгебра! Срочно! 10 б.

Answer 1

$\sqrt{45}+\sqrt{x-3}=\sqrt{20}\\3\sqrt{5}+\sqrt{x-3}=2\sqrt{5}\\\sqrt{x-3}=2\sqrt{5}-3\sqrt{5}\\\sqrt{x-3}=-\sqrt{5}\\x \in \varnothing$