Final: A Cubic Expression

Part of the Expressions & Data section of Coddy's Pre-Algebra journey. Lesson 49 of 52.

This problem gives an expression with a cube in it and a negative value for x. Put the value in place of every x, inside brackets so its sign stays attached, then follow the order of operations down to one number.

Challenge

Evaluate 2x^3 + 5x when x is -3. Call the value v: write v equal to the expression with -3 in place of x, then work it down to one number.

Test yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

Test yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

All lessons in Expressions & Data

1Variables and Expressions

What a Variable Is Writing Expressions Expressions from Stories Two Operations Recap: Expressions

4Combining Like Terms

Like Terms Letters and Numbers Negative Terms Two Letters Distribute, Then Collect Recap: Like Terms

7Probability

Chance as a Fraction The Complement Chance as a Percent Expected Count Recap: Probability

10Final Challenges

Final: Two BracketsFinal: A Cubic ExpressionFinal: The Phone Plan Final: A Decimal Mean Final: The Last Spin

2Evaluating Expressions

Substituting a Value Negative Inputs Powers in Expressions Formulas Recap: Evaluating

5Patterns and Sequences

Continuing a Pattern The Common Difference The nth Term Writing the Rule Recap: Sequences

8Tables and Charts

Reading a Table Totals and Differences Reading a Line Graph Percent of a Total Recap: Tables and Charts

3The Distributive Property

Number Properties Mental Math Distributing Letters Distributing a Minus Recap: Distributing

6Data and Averages

The Mean Mean with Negatives The Median The Mode The Range Recap: Data and Averages

9Perimeter and Area

Perimeter Area of a Rectangle Area of a Triangle Perimeter as an Expression Recap: Perimeter and Area