Factories:63a2b2 – 7

We have,63a2b2 – 7= 7(9a2b2 – 1)By using the formula a2 – b2 = (a + b)(a – b)We get,63a2b2 – 7 = 7(9a2b2 – 1)= 7{(3ab)2 – (1)2}= 7(3ab + 1)(3ab – 1)

Q15 of 137 Page 100

Factories:
63a²b² – 7

We have,

63a²b² – 7

= 7(9a²b² – 1)

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

We get,

63a²b² – 7 = 7(9a²b² – 1)

= 7{(3ab)² – (1)²}

= 7(3ab + 1)(3ab – 1)

Factories:

3x⁵ – 48x³

Factories:

16p³ – 4p

Factories:

1 – (b – c)²

Factories:

(2a + 3b)² – 16c²