Rationalize the denominator. $\(\frac{6+\sqrt{x}\)}{-\(\sqrt{x}\)}$

Rationalize the denominator and simplify the radical expression.

$\(\frac{2-\sqrt3}{2+\sqrt3}\)$

Rationalize the denominator and simplify the radical expression.

$\(\frac{\sqrt7}{5-\sqrt6}\)$

Rationalize the denominator.

$\(\frac{1}{\sqrt7}\)$

Rationalize the denominator.

$\(\frac{3}{3+\sqrt7}\)$

Rationalize the denominator.

$\(\frac{5}{\sqrt3-1}\)$

Rationalize the denominator.

$\(\frac{6}{\sqrt5+\sqrt3}\)$

Evaluate each expression or indicate that the root is not a real number.

$\(\frac{\sqrt7}{\sqrt3}\)$