15 Likes
Answered By
7 Likes
Factorise :
x4 + y4 - 27x2y2
4x4 + 9y4 + 11x2y2
a - b - 4a2 + 4b2
(2a - 3)2 - 2(2a - 3)(a - 1) + (a - 1)2