Решите пожалуйста!!!

1) 5 = $\sqrt{25}$
2) 2 $\sqrt{7}$ = $\sqrt{28}$
3)3 $\sqrt{3}$ = $\sqrt{27}$
4) $\sqrt{23}$

$\sqrt{23}$ <<img src="https://tex.z-dn.net/?f=+%5Csqrt%7B25%7D+" id="TexFormula8" title=" \sqrt{25} " alt=" \sqrt{25} " align="absmiddle" class="latex-formula"><<img src="https://tex.z-dn.net/?f=+%5Csqrt%7B27%7D+" id="TexFormula9" title=" \sqrt{27} " alt=" \sqrt{27} " align="absmiddle" class="latex-formula"><<img src="https://tex.z-dn.net/?f=+%5Csqrt%7B28%7D+" id="TexFormula10" title=" \sqrt{28} " alt=" \sqrt{28} " align="absmiddle" class="latex-formula"> => Ответ: 2