GCSE Maths: Solving Quadratics with the Quadratic Formula for 2026/27 Exams

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*** WHAT'S COVERED ***
1. How to solve quadratic equations using the quadratic formula.
* Identifying the coefficients a, b, and c from the standard form ax² + bx + c = 0.
* Substituting the values of a, b, and c into the quadratic formula.
2. Understanding the ± symbol in the formula leads to two potential solutions.
3. Calculating the two solutions for x.
4. Worked examples demonstrating the application of the quadratic formula.

*** EXAM BOARD INFO ***
This video is suitable for maths courses around the world.
KS3 - Not on your course
GCSE Foundation - All on your course
GCSE Higher - All on your course

*** CHAPTERS ***
0:00 Intro: The Quadratic Formula
0:10 Identifying Coefficients a, b, and c
0:21 Example 1: Substituting Values
0:47 Two Answers from the ± Sign
1:00 Example 1: Calculation Steps
1:29 Calculating Rounded Decimal Answers
2:04 Calculating Exact (Surd) Answers
3:26 Example 2: Problem
3:39 Example 2: Identifying Coefficients
4:01 Example 2: Substituting Values
4:22 Example 2: Simplifying the Formula
4:45 Example 2: Final Rounded Answers

*** PLAYLISTS ***
https://youtube.com/playlist?list=PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh&si=orIUwL3o2jOoiYjT

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https://youtube.com/playlist?list=PLidqqIGKox7UVC-8WC9djoeBzwxPeXph7&si=-7i5Iq7yOeJrhtu6

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