Question

factorise 2y^3+y^2-2y-1​

Answer 1

Step-by-step explanation:

2y^3 + y^2 - 2y -1

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

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

[a^2-b^2 =(a+b)(a-b)]

so,

( 2y+1) (y+1)(y-1)

hope it's (•‿•) helpful

Answer 2

Answer:

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

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

(2y +1) (y+1) (y-1)

Step-by-step explanation: