Example 6 - Add (i) 5m (3 - m) and 6m^2 - 13m (ii) 4y (3y^2 + 5y - 7)

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Example 6 - Chapter 9 Class 8 Algebraic Expressions and Identities - Part 2

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  1. Chapter 9 Class 8 Algebraic Expressions and Identities
  2. Serial order wise

Transcript

Example 6 Add (i) 5m (3 – m) and 6m2 – 13m Simplifying first expression 5m (3 – m) = 5m × 3 – 5m × m = (5 × 3)m – 5(m × m) = 15m – 5m2 So our expression are 15m – 5m2 & 6m2 – 13m Adding the expressions, ∴ Required sum = 2m + m2

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.