Question

factorise y^3+y^2-y-1 with full answer please fast......

Answer 1

=y^2(y+1)-1(y+1)
=(y+1)(y^2-1)

Answer 2

AHOY USER !!

FACTORISE : $y ^3 + y ^2 - y - 1$

$= y ^2 (y + 1) -1 (y + 1)$

$= (y + 1) (y ^2 - 1)$

$= (y + 1) [(y)^2 - (1)^2]$

$= (y + 1) (y + 1) (y - 1)$

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