⭐️ https://www.cognito.org/ ⭐️
*** WHAT'S COVERED ***
1. Simplifying algebraic expressions involving multiplication.
2. Using indices (powers) to simplify repeated variables.
3. Multiplying numerical coefficients together.
4. Combining variables using the rules of indices.
5. How to handle negative numbers when simplifying.
6. Expanding expressions involving brackets and powers before simplifying.
7. The importance of using brackets correctly, especially with negative numbers and powers.
*** EXAM BOARD INFO ***
KS3 - Not on your course
GCSE Foundation - All on your course
GCSE Higher - All on your course
*** CHAPTERS ***
0:00 Intro to Simplifying Algebraic Expressions
0:16 Basic Rules: Omitting Multiplication Signs
0:30 Example: Simplifying Letters (a x b x c)
0:55 Example: Simplifying with Numbers and Letters (3 x a x c)
1:14 Example: Simplifying with Repeated Letters (3 x a x a using indices)
1:41 Example: Simplifying with Multiple Numbers and Letters (3 x a x 4 x c)
2:30 Example: Combining Numbers, Letters, and Indices (3 x 2p x q x 4p x q²)
3:22 Example: Simplifying with Negative Numbers (-3 x -6 x a)
3:47 Important Note: Squaring Negative Numbers and Brackets (-4² vs (-4)²)
4:32 Expanding and Simplifying Expressions with Brackets and Powers
4:44 Example: Expanding and Simplifying (hj)³
5:25 Example: Expanding and Simplifying 3a(2a)²
*** PLAYLISTS ***
https://youtube.com/playlist?list=PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh&si=orIUwL3o2jOoiYjT
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https://youtube.com/playlist?list=PLidqqIGKox7UVC-8WC9djoeBzwxPeXph7&si=-7i5Iq7yOeJrhtu6
https://youtube.com/playlist?list=PLidqqIGKox7VKJD2WxRhoKaI6JGLVean8&si=NH_Q1ujhVgACM2FU
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