• ##### Device
• TI-Nspire™ CX
• TI-Nspire™ CX CAS
• TI-Nspire™ Navigator™
• TI-Nspire™
• TI-Nspire™ CAS
• ##### Software

TI-Nspire™
TI-Nspire™ CAS

• ##### TI-Nspire Version

3.0

Algebra 2: Sums and Difference of Cubes
by Texas Instruments - Action Consequence Lesson

Published on August 28, 2011

#### Objectives

• Students will be able to classify expressions as the sum of cubes, difference of cubes, or neither.
• Students will be able to make connections between the graph of a cubic polynomial, in the form of a sum or difference of cubes, and its factors.
• Students will be able to factor expressions in the form of a sum or difference of cubes.
• Students will look for and make use of structure (CCSS Mathematical Practice).

#### Vocabulary

• Cube roots
• Sum of cubes
• Difference of cubes
• Linear factor

This lesson involves factoring expressions that are either the sum of cubes or the difference of cubes. Students will:

• Edit text to find the cube root of terms.
• Pull text boxes to a point to identify binomial expressions as the sum of cubes, difference of cubes, or neither.
• Study the graphs of simple cubic functions, in the form of a sum or difference of cubes, and their linear and quadratic factors.
• Enter text in a spreadsheet to find the binomial factor of an expression that is the sum or difference of cubes.Enter text in a spreadsheet to find the trinomial factor of an expression which is the sum or difference of cubes.