Question

a^3+2a^2-a-2. ans: (a+2) (a+1)(a-1)

Answer 1

a^3 + 2a^2 - a - 2

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

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

= (a +2) [ a^2 - 1^2]

= (a+2)(a+1)(a-1)

Answer 2

a³ +2a² -a-2

a²(a+2) -1(a+2)

(a²-1) (a+2)

(a²-1²) (a+2)

(a+1)(a-1)(a+2)


I hope this will help you


-by ABHAY