Question

dincitly (l) simply (2 x - 5y)³ - (2x+5y)³​

Answer 1

Answer:

- 10y(12x² + 25y²)

Step-by-step explanation:

(a ± b)³ = a³ ± 3a²b + 3ab² ± b³

(2x - 5y)³ - (2x + 5y)³ =

8x³ - 60x²y + 150xy² - 125y³ - (8x³ + 60x²y + 150xy² + 125y³) =

8x³ - 60x²y + 150xy² - 125y³ - 8x³ - 60x²y - 150xy² - 125y³ =

- 120x²y - 250y³ = - 10y(12x² + 25y²)