Verified answer

✐Derivation✐

80y³ - 120y² + 25y

5y(16y² - 24y + 5)

5y(16y² - 4y - 20y + 5)

5y(4y(4y - 1) - 5(4y - 1))

5y(4y - 1)(4y - 5)

5y(4y - 1)(4y - 5)