Radical Expressions and Rational Exponents

Simplify the expression. Write your answer in simplest radical form with a rational denominator.

√ 64

• 4

• 6

• 9

• 8

The number under the radical sign is called the ______.

• radical sign

• radicand

• factor

• exponent

Which expression with a fractional exponent best represents √7 ?

• 7 ^½

• 7¼

• 7⅓

• 2⁷

Write as a radical expression
y¹⁄ ³

• ∛y

• y³

• √y

• 1∕ 3y

What is the cube root of 8?

• 4

• 2

• -2

• -4

What is the value of 27^⅓?

• 27

• 9

• 3

• 1/3