Question

Factories 2y³+y²-2y-1

Answer 1

=2y³+y²-2y-1
=2y(2y+1) -1(2y+1)
=(2y+1)(2y-1) ......[taking common (2y+1)]

Answer 2

Hello friend,
2y^3+y^2-2y-1
=2y^3-2y+y^2-1
=2y(y^2-1)+1(y^2-1)
=(2y+1)(y^2-1)
hope it helps.