Question

hcf of 9(x+y)^2 and 21(x+y)(x-y)​

Answer 1

Answer:

hcf of 9(x+y)^2 and 21(x+y)(x-y)=3(x+y)

Answer 2

the hcf is 3(x+y)^2

because (x+y)(x+y)=(x+y)^2

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