Quadratic Equations

In this chapter, you will be introduced to quadratic equations and the methods to find quadratic roots. It teaches you the three methods of finding roots – factorization, completing the square and the quadratic formula and how to calculate the type of roots beforehand using the discriminant of the quadratic equation.

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Created by School Prep . Last updated Thu, 25-Mar-2021 English
Curriculum for this course
41 Lessons 38:31:05 Hours
Solving quadratics in factored form
2 Lessons
  • Zero product property 00:07:17
  • Quiz 1 5
  • Solving quadratics by taking square roots 00:02:18
  • Solving quadratics by taking square roots examples 00:05:12
  • Solving quadratics by taking square roots: strategy 00:04:25
  • Quadratics by taking square roots: with steps 00:01:45
  • Solving quadratics by taking square roots: challenge 00:11:03
  • Quiz 2 5
  • Solving quadratics by factoring 00:06:22
  • Solving quadratics by factoring: leading coefficient ≠ 1 00:04:35
  • Solving quadratics using structure 00:03:55
  • Strategy in factoring quadratics (part 1 of 2) 00:07:12
  • Strategy in factoring quadratics (part 2 of 2) 00:08:41
  • Solving quadratic equations by factoring (old) 00:10:09
  • Quiz 3 5
  • Completing the square 00:14:06
  • Worked example: Completing the square (intro) 00:03:22
  • Worked example: Rewriting expressions by completing the square 00:03:02
  • Worked example: Solving equations by completing the square 00:06:19
  • Worked example: completing the square (leading coefficient ≠ 1) 00:05:44
  • Solving quadratics by completing the square: no solution 00:05:25
  • Quiz 4 5
  • The quadratic formula 00:16:32
  • Using the quadratic formula 00:05:34
  • Worked example: quadratic formula 00:02:22
  • Worked example: quadratic formula (example 2) 00:06:40
  • Worked example: quadratic formula (negative coefficients) 00:04:51
  • Proof of the quadratic formula 00:07:44
  • Quiz 5 5
  • Using the quadratic formula: number of solutions 00:04:59
  • Discriminant for types of solutions for a quadratic 00:04:37
  • Discriminant of quadratic equations 00:10:14
  • Quiz 6 5
  • Quadratic equations word problem: triangle dimensions 00:08:21
  • Quadratic equations word problem: box dimensions 00:05:54
  • Quadratic word problem: ball 00:05:53
  • Quiz 7 5
  • Revision Notes
  • Question Bank
  • Previous Year Board Papers
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