← Algebra Course
UNIT 11 · LESSON 3

Substituting Correctly

Use a universal method for solving any quadratic equation.

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 Substituting Correctly from the idea itself instead of asking you to memorize a rule first.

Places this kind of mathematics can appear:

physics
engineering
ballistics
optimization
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