Ex 12.2, 3 - Chapter 12 Class 7 Algebraic Expressions - Part 6

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  1. Chapter 12 Class 7 Algebraic Expressions
  2. Serial order wise

Transcript

Ex 12.2, 3 Subtract: (vi) – x2 + 10x – 5 from 5x – 10 (5x − 10) − (−x2 + 10x − 5) = 5x − 10 + x2 − 10x + 5 = x2 + 5x − 10x + 5 − 10 = x2 + x (5 − 10) + (5 − 10) = x2 + x (−5) + (−5) = x2 − 5x − 5

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