Evaluate: (3x - 2y)(4x + 3y) (8x - 5y) - Mathematics

Evaluate: (3x - 2y)(4x + 3y) (8x - 5y)

Sum

(3x - 2y)(4x + 3y)(8x - 5y)

= 3x (4x + 3y) - 2y (4x + 3y)(8x - 5y)

= (12x² + 9xy - 8xy - 6y²)(8x - 5y)

= (12x² + xy - 6y² )(8x - 5y)

= 8x (12x² + xy - 6y² ) - 5y (12x² + xy - 6y² )

= 96x³ + 8x²y - 48xy² - 60x²y - 5xy² + 30y³

= 96x³ + 8x²y - 60x²y - 48xy²- 5xy² + 30y³

= 96x³ - 52x²y - 53xy² + 30y³

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Chapter 11: Fundamental Concepts (Including Fundamental Operations) - Exercise 11 (C)

Chapter 11 Fundamental Concepts (Including Fundamental Operations)
Exercise 11 (C) | Q 5.2