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The GCD and LCM of two polynomials are x + 1 and x4 - 1 respectively. If one of the polynomials is x2​ + 1, find the other one.
Question

The GCD and LCM of two polynomials are x + 1 and x4 - 1 respectively. If one of the polynomials is x2​ + 1, find the other one.

A.

x3​ - 1

B.

(x + 1)(x2​ - 1)

C.

x2+ x - 1

D.

x2 - x + 1

Correct option is B

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