d Question 2: Factorize x^{2}-y ^{2}-6y-9 | Job Exam Rare Mathematics (JEMrare) - Solved MCQs

Question 2: Factorize x^{2}-y ^{2}-6y-9

Question 2: Factorize x^{2}-y ^{2}-6y-9

a square minus b square type expressions


The given expression is

 x^{2}-y ^{2}-6y-9

Here we see that first two terms depict  a^{2}-b^{2} =(a-b)(a+b) form and in the last two terms 3 is common;

we write;

= (x-y)(x+y)-3(2y-3)





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