Write each expression without negative exponents, and evaluate if possible. Assume all variables represent nonzero real numbers. See Example 4. -5^-4

In Exercises 33–44, add or subtract terms whenever possible. √50x−√8x

In Exercises 33–46, simplify each expression.____√36x⁴

In Exercises 35–52, write each expression with positive exponents only. Then simplify, if possible.-5⁻²

In Exercises 39–54, rewrite each expression with a positive rational exponent. Simplify, if possible.49^-½

In Exercises 39–60, simplify by factoring. Assume that all variables in a radicand represent positive real numbers and no radicands involve negative quantities raised to even powers.__√x⁵

Find each root. ⁶√x^6

Simplify each exponential expression in Exercises 23–64. (−4/x)^3

In Exercises 33–46, simplify each expression._____−√100x⁶