Question

16. (64m2 - 144mn + 81n) - 25p2

Answer 1

Answer:

The given expression is, (64m2−144mn+81n2)−25p2=((8m)2−2×8m×9n+(9n)2)−(5p)2=(8m−9n)2−(5p)2Now we know that, a2−b2=(a−b)(a+b)=(8m−9n−5p)(8m−9n+5p