Factorize: 9a 2 + 3a – 8b – 64b 4

Question

Factorize: 9a 2 + 3a &#x2013; 8b &#x2013; 64b 4

Philoid · Accepted Answer

We have,

= 9 a² – 64b² + 3a – 8b

We can also write this as:

= (3a)² –(8b)² + ( 3a – 8b)

Now,

Using identity: a² - b² = (a – b)(a + b)

Factorize:9a2 + 3a – 8b – 64b4