Question

сократите дробь: $\frac{x-2}{\sqrt{x}+\sqrt{2}}$

Answer 1

$\frac{x-2}{\sqrt{x}+\sqrt{2}}=\frac{(\sqrt{x})^{2}-(\sqrt{2})^{2}}{\sqrt{x}+\sqrt{2}}=\frac{(\sqrt{x}-\sqrt{2})(\sqrt{x}+\sqrt{2})}{\sqrt{x}+\sqrt{2}}=\sqrt{x}-\sqrt{2}$

Answer 2

Решение внизу на фото