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![Calculate 43^2 - Chapter 4 Class 9 Ganita Manjari Part 1 [Teachoo] - Visualising Algebraic Identities](https://cdn.teachoo.com/d98abd5b-ed88-4fbf-a8f3-b9fdede7dd57/slide27.jpg)
Example 4 - Chapter 4 Class 9 - Exploring Algebraic Identities (Ganita Manjari I)
Last updated at May 15, 2026 by Teachoo
Class 9
Chapter 4 Class 9 - Exploring Algebraic Identities (Ganita Manjari I)
- Consecutive Square Numbers
-
Visualising Algebraic Identities
- Exercise Set 4.1
- Factorisation of Algebraic Expressions Using Identities
- Exercise Set 4.2
- More Identities
- Exercise Set 4.3
- Rewriting a2 - b2 Identity
- Factorisation Using Algebra Tiles
- Factorisation by Splitting the Middle term
- Exercise Set 4.4
- Finding New Algebraic Identities
- Simplifying Rational Expressions
- Exercise Set 4.5
- Word Problems
- End-of-Chapter Exercises
Transcript
Example 4 Calculate 43^2 43^2 =(𝟒𝟎+𝟑)^𝟐 (𝑎+𝑏)^2=𝑎^2+𝑏^2+2𝑎𝑏 Putting 𝑎 = 40 & 𝑏 = 3 = 40^2+3^2+2 × 40 × 3 = 1600+9+240 = 𝟏𝟖𝟒𝟗
