Question

Factorise :- y⁴ - y²- y+ y³​

Answer 1

Answer:

y⁴ - y² - y + y³

y²( y² -1) + y(y²-1)

(y²+y ) (y²-1)

cannot be further solved

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Answer 2

Answer:

${y}^{4} + {y}^{3} - {y}^{2} - y \\ {y}^{3} ( y + 1) - y(y + 1) \\ ( {y}^{3} - y)(y + 1) \\ y( {y}^{2} - 1)(y + 1)$

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