Equations

Lessons

Work through them in order – each builds on the one before.

1. 1

   Lesson 1High school~14 minContinue here

   Quadratic Equations - the Formula

   Solving ax² + bx + c = 0 with the discriminant

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2. 2

   Lesson 2High school~12 min

   Quadratic Equations - Factoring

   The quick way with brackets: product and sum

3. 3

   Lesson 3High school~10 min

   Exponential Equations

   Solving exponential equations

4. 4

   Lesson 4High school~10 min

   Exp. Equations - Basics

   Basic solution methods

5. 5

   Lesson 5High school~10 min

   Trigonometric Equations 1

   Basic trigonometric equations

6. 6

   Lesson 6High school~10 min

   Trigonometric Equations 2

   Advanced trigonometric equations

7. 7

   Lesson 7University~10 min

   Systems - Substitution

   Substitution method

8. 8

   Lesson 8University~10 min

   Systems - Elimination

   Elimination method

9. The goal of this topic

   Once the lessons are behind you, prove you really know the topic. Three levels – easy, hard and expert.

   Mastery test

   Equations

   Linear and quadratic equations, exponential equations and systems.

   • 20 questions
   • 100% required
   • Increasing difficulty

   Mastery

   Three levels. Only 100% unlocks each one.

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   • Easy

     Basic understanding

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   • HardLocked

     Advanced understanding

     20 questions · 100% to master

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     Score 100% on Easy Mastery to unlock this level.

   • ExpertLocked

     Deep understanding

     20 questions · 100% to master

     Best score

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     0

     Score 100% on Hard Mastery to unlock this level.