# Question 2: Factorize x 2 − y 2 − 4 x − 2y + 3

Question 2: Factorize

How to factorize ?

Solution:

Given expression is

To convert it to a factorize-able form ,  we add 1 and subtract 1, so that expression remains same ;

=

Rearranging terms as below;

Now this is in form !

Where;

(x+2) stands for a

and

(y+1) stands for b

So, according to formula;

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Insert math as
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