Define un exponente racional y proporciona un ejemplo de una expresión que lo contenga.

What is the solution to the equation? \( \sqrt{x}+6=x \)

b) \( -x^{2}+x+72=0 \)

Which expressions are equivalent to the given expression? \( 5 \log _{10} x+\log _{10} 20-\log _{10} 10 \)

If no denominator equals zero, which expression is equivalent to \( \frac{x+2}{x^{2}-16} \div \frac{2 x+4}{x^{2}+3 x-4} \) ? A. \( \frac{x-1}{3 / x-1)} \)

Enter the correct answer in the box. Rewrite the expression \( 2 \sqrt[4]{x^{7}} \) using rational exponents. \( \begin{array}{lll}\frac{\square}{\square} & \text { (ㅁ) } \mid \text { 미 } \square^{\square} \mid+--\end{array} \)