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# Sum and Difference of Cubes

## Use formulas to factor pairs of added or subtracted perfect cubes

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Sum and Difference of Cubes

This lesson introduces and uses the sum and difference of cubes formulas.

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• PLIX

## Sum of Cubes: Stacking Blocks

Sum and Difference of Cubes Interactive

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• Video

## Factoring Sum of Cubes

Shows how to factor the sum or difference of cubes.

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## Sum and Difference of Cubes Quickwrite (PreRead)

To activate prior knowledge, make personal connections, reflect on key concepts, encourage critical thinking, and assess student knowledge on the topic prior to reading using a Quickwrite.

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