← Algebra Course
UNIT 10 · LESSON 6

Perfect-square trinomials

Reverse multiplication to expose mathematical structure.

WHY LEARN THIS?

This idea has a purpose.

Mathematics becomes much easier when you understand what a tool was designed to accomplish. This lesson will build Perfect-square trinomials from the idea itself instead of asking you to memorize a rule first.

Places this kind of mathematics can appear:

finding dimensions
solving area problems
engineering design
finding when quantities become zero
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