2 y cube plus y square
minus 2 Y - 1
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2y³ + y² - 2y - 1
2y³ - 2y + y² - 1
2y(y² - 1) + 1 (y² - 1)
(y² - 1) (2y + 1)
Again y² - 1 is in the form of a² - b² which is equal to (a - b) (a + b)
Therefore
(y + 1) (y - 1) (2y + 1) is the answer.
2y³ - 2y + y² - 1
2y(y² - 1) + 1 (y² - 1)
(y² - 1) (2y + 1)
Again y² - 1 is in the form of a² - b² which is equal to (a - b) (a + b)
Therefore
(y + 1) (y - 1) (2y + 1) is the answer.
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