Q7 of 274 Page 64

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:


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