Factories:9a2b2 – 25

We have,9a2b2 – 25= (3ab)2 – (5)2By using the formula a2 – b2 = (a + b)(a – b)We get,9a2b2 – 25 = (3ab)2 – (5)2= (3ab + 5)(3ab – 5)

Q6 of 137 Page 100

Factories:
9a²b² – 25

We have,

9a²b² – 25

= (3ab)² – (5)²

By using the formula a² – b² = (a + b)(a – b)

We get,

9a²b² – 25 = (3ab)² – (5)²

= (3ab + 5)(3ab – 5)

Factories:

4x² – 9y²

Factories:

16a² – 225b²

Factories:

16a² – 144

Factories:

63a² – 112b²