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Factorize :2y^3+y^2-2y-1...

Factorize :`2y^3+y^2-2y-1`

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Now Factorizing,`2y³ + y² – 2y – 1`
`= y² (2y + 1) -1(2y+1)`
`= (2y + 1)(y² – 1)`
`= (2y + 1)(y² – 1²)`
`(y² – 1²) = (y + 1)(y – 1)`
`(2y + 1)(y² – 1²)`
` (2y + 1) (y + 1) (y – 1)`
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