Question

25a2− 60ab – 1 + 36b2 factories​

Answer 1

Answer:

• (5a)2 - 60ab + (6b)2 - 1
• (5a)2 -2×5a×6b + (6b)2 - 1
• (5a - 6b)2 - 1 ANSWER
• Identity use in this sum (a - b)2