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Question

Find the HCF of the following pair of polynomials:
x2xy and x2y2

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Solution

We know that HCF is the highest common factor.

Factorise x2xy as follows:

x2xy=x(xy)

Now, factorise x2y2 as follows:

x2y2=(x+y)(xy) (using identity a2b2=(a+b)(ab))

Since the common factor between the polynomials x2xy and x2y2 is (xy).

Hence, the HCF is (xy).

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