Factorize:
3x3 - 48
We have,
3x3 - 48
= 3x(x2 - 16)
We can also write the expression as:
3x[(x)2 – (4)2]
Now,
Using identity: a2 – b2 = (a – b)(a + b)
Hence,
The given expression can be factorized as: 
7
Factorize:
3x3 - 48
We have,
3x3 - 48
= 3x(x2 - 16)
We can also write the expression as:
3x[(x)2 – (4)2]
Now,
Using identity: a2 – b2 = (a – b)(a + b)
Hence,
The given expression can be factorized as: