multiply 5x + 3y;4x + y;3x - 2y
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Answer:
60x³ + 11x²y - 25xy² - 6y³
Step-by-step explanation:
(5x + 3y) ( 4x + y) ( 3x - 2y)
= { 5x(4x + y) + 3y(4x + y)} (3x - 2y)
= (20x² + 5xy + 12xy + 3y²) (3x - 2y)
= (20x² + 17xy + 3y²) ( 3x - 2y)
= 3x(20x² + 17xy + 3y²) - 2y(20x² + 17xy + 3y²)
= 60x³ + 51x²y + 9xy² - 40x²y - 34xy² - 6y³
= 60x³ + 11x²y - 25xy² - 6y³ [answer]
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