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Depdendent Variable

Number of equations to solve:

Equ. #1:

Equ. #2:

Equ. #3:

Equ. #4:

Equ. #5:

Equ. #6:

Equ. #7:

Equ. #8:

Equ. #9:

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Enter inequality to solve, e.g. 2x+3>4

Enter inequality to graph, e.g. y<3x^2-1

Dependent Variable

Number of inequalities to solve:

Ineq. #1:

Ineq. #2:

Ineq. #3:

Ineq. #4:

Ineq. #5:

Ineq. #6:

Ineq. #7:

Ineq. #8:

Ineq. #9:

Solve for:

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Use Cube Roots and Fractional Exponents

Goal • Simplify expressions with fractional exponents.

Your Notes

VOCABULARY

Cube root The cube root of a real number a is a
real number b such that

Example 1 Find cube roots

Evaluate the expression.

	The cube root of -1 is -1.
	The opposite of the cube root of 343 is -7.
	The opposite of the cube root of -125 is 5.

Example 2 Multiple Choice Practice

What is the value of the expression

Solution

Evaluate and

Add.

The correct answer is B.

Guided Practice Simplify the expression.

Example 3 Evaluate expressions involving square roots

Example 4 Evaluate expressions involving cube roots

Example 5 Use properties of exponents

Simplify the expression. Write your answer using
only positive exponents.

Guided Practice Simplify the expression. Write your
answer using only positive exponents.

Homework

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More Algebra Help

Use Cube Roots and Fractional Exponents