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

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Transcript

Example 8 Multiply (ii) (š‘„ – š‘¦) and (3š‘„ +5š‘¦) (š‘„āˆ’š‘¦)Ɨ(3š‘„+5š‘¦) = š‘„(3š‘„+5š‘¦)āˆ’š‘¦(3š‘„+5š‘¦) = (š‘„Ć—3š‘„)+(š‘„Ć—5š‘¦)āˆ’(š‘¦Ć—3š‘„)āˆ’(š‘¦Ć—5š‘¦) = 3š‘„^2+5š‘„š‘¦āˆ’3š‘¦š‘„āˆ’5š‘¦^2 = 3š‘„^2+5š‘„š‘¦āˆ’3š‘„š‘¦āˆ’5š‘¦^2 = šŸ‘š’™^šŸ+šŸš’™š’šāˆ’šŸ“š’š^šŸ

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