64 - 25x2 + 60xy - 36y2
= (8)2 - [25x2 - 60xy + 36y2]
= (8)2 - [(5x)2 - 2(5x)(6y) + (6y)2]
= (8)2 - (5x - 6y) ( a - b ) ^2 = a^2 - 2ab + b^2 = [8 - (5x - 6y)] [8 + (5x - 6y)]
(a^2 - b^2) = (a-b)(a+b)
= (8 - 5x + 6y) (8 + 5x - 6y)
Factorise: 25x2−10x+1−36y2
Factorize the following algebraic expression: 25x2−10x+1−36y2