Ex 8.4, 3 (i) - Chapter 8 Class 8 Algebraic Expressions and Identities

Last updated at December 16, 2024 by

Ex 8.4, 3 (i) - Simplify (x^2 - 5) (x + 5) + 25 - Chapter 9 Class 8 - Ex 8.4

part 2 - Ex 8.4, 3 (i) - Ex 8.4 - Serial order wise - Chapter 8 Class 8 Algebraic Expressions and Identities

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Ex 8.4, 3 Simplify. (i) (š‘„^2āˆ’5) (š‘„+5)+25Here, there are 2 expressions: 1st expression = (š‘„^2āˆ’5) (š‘„+5) 2nd expression = 25 Solving 1st expression (š’™^šŸāˆ’šŸ“) (š’™+šŸ“) = š‘„^2 (š‘„+5)āˆ’5(š‘„+5) = (š‘„^2 Ɨ š‘„)+(š‘„^2 Ɨ 5)āˆ’(āˆ’5 Ɨ š‘„)āˆ’(5 Ɨ 5) = š’™^šŸ‘+šŸ“š’™^šŸāˆ’šŸ“š’™āˆ’šŸšŸ“ Now, our expression is (š’™^šŸāˆ’šŸ“) (š’™+šŸ“)+šŸšŸ“ = š‘„^3+5š‘„^2āˆ’5š‘„āˆ’25+25 = š’™^šŸ‘+šŸ“š’™^šŸāˆ’šŸ“š’™

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