Simplify the given expression.
(5x + 8y) (25x2 + 64y2 - 40xy)
Answer & explanation
Correct answer: option 3
(a³ + b³) = (a + b)(a² + b² - ab)
= (5x + 8y) (25x2 + 64y2 - 40xy)
= (5x + 8y)[(5x)² + (8x)² - 8 × 5 xy]
= (5x)³ + (8y)³
= 125x³ + 512y³
Simplify the given expression.
(5x + 8y) (25x2 + 64y2 - 40xy)
Correct answer: option 3
(a³ + b³) = (a + b)(a² + b² - ab)
= (5x + 8y) (25x2 + 64y2 - 40xy)
= (5x + 8y)[(5x)² + (8x)² - 8 × 5 xy]
= (5x)³ + (8y)³
= 125x³ + 512y³