# R8 Radicals and Rational Exponent s. Radical Notation n is called the index number a is called the radicand.

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R8 Radicals and Rational Exponent s

Radical Notation n is called the index number a is called the radicand

Simplifying Radicals 1.The radicand has no factor raised to a power greater than or equal to the index number. 2.The radicand has no fractions. 3.No denominator contains a radical. 4.Exponents in the radicand and the index of the radical have no common factor. 5.All indicated operations have been performed

If there is no index #, it is understood to be 2 When simplifying radicals use perfect squares, cubes, etc. Use factor trees to break a number into its prime factors Apply the properties of radicals and exponents Simplifying Radicals

Assume that all variables represent nonnegative real numbers.

Rewrite each of the following as a single number under the radical sign.

Multiplying Radicals 1.Radicals must have the same index number 2. Multiply outsides and insides together 3. Add exponents when multiplying 4. Simplify your expression 5. Combine all like terms

Assume that all variables represent nonnegative real numbers.

Simplify each of the following radicals.

Assume that all variables represent nonnegative real numbers and that no denominators are zero.

Simplify each of the following radicals.

Rational Exponents

Simplify each expression containing fractional exponents as radicals.

Simplify each expression using radicals and exponents.

Simplify each expression using radicals or exponents.

Simplifying each expression. Express your answer so that only positive exponents occur. Assume that the variables are positive.