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If the highest common factor (H.C.F.) of two polynomials is x + 1 and their least common multiple (L.C.M.) is x^2 - 1, what is the product of the two polynomials?

B. (X + 1)(X^2 - 1)
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What is the solution to the quadratic equation x^2 - 4x + 4 = 0?

A. X = 2
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Which of the following expressions represents the intersection of the sets A = {1, 2, 3} and B = {2, 3, 4}?

B. {2, 3}
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