Question

If y+1 is a factor of y3+y2-y-1 then find other 2 factors​

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

this question can be done by dividing the polynomial by (y+1) and then again factorising.

or

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

these are the other factors excluding (y+1)

=(y-1)(y+1)