Evaluate : (3x−4y) (3x+4y) (9x2+16y2) - Mathematics

Evaluate : (3x−4y) (3x+4y) (9x²+16y²)

Sum

(3x−4y) (3x+4y) (9x²+16y²)

= [(3x)²−(4y)²] (9x²+16y²)

= (9x²−16y²) (9x²+16y²)

= (9x²)² − (16y²)²

= 81x⁴ − 256y⁴

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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 3.5 | Page 150

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Evaluate: (3x + 4y) (3x − 4y) (9x² + 16y²)