Factorise.

We know that
![]()
- - - - - (i)
Here a = 1, b =
; putting values in eq.i
![]()
![]()
![]()
![]()
Applying ![]()
![]()
}
Note: Must memorize cubes upto 12
AI is thinking…
Couldn't generate an explanation.
Generated by AI. May contain inaccuracies — always verify with your textbook.

