In Exercises 47 - 49, add or subtract terms whenever possible. 7√5 + 13√5

In Exercises 45–66, divide and, if possible, simplify.___√200√10

In Exercises 39–64, rationalize each denominator.1-----³√3

Use the rules for radicals to perform the indicated operations. Assume all variable expressions represent positive real numbers. √7 • √28

Write each expression without negative exponents, and evaluate if possible. Assume all variables represent nonzero real numbers. See Example 4. -a^-3

In Exercises 45–66, divide and, if possible, simplify.__³√54³√2

In Exercises 39–64, rationalize each denominator.10-----³√5

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._____³√x³y¹⁷z²

In Exercises 47 - 49, add or subtract terms whenever possible. 4√72 - 2√48