Evaluate : (5x + 8y) (3x + 5y) - Mathematics

Evaluate : (5x + 8y) (3x + 5y)

Sum

(5x + 8y) (3x + 5y)

= 5x (3x + 5y) + 8y (3x+ 5y)

= 15x² + 25xy + 24xy + 40y²

= 15x² + 49xy + 40y²

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Product of Sum and Difference of Two Terms

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Chapter 12: Identities - Exercise 12 (A) [Page 150]

Chapter 12 Identities
Exercise 12 (A) | Q 5.07 | Page 150

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