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If the quadratic equation x^2 - 7x + 10 = 0 has roots r1 and r2, what is the value of r1 + r2?

B. 7
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What is the L.C.M. of the polynomials x^2 - 1 and x^2 - 4?

A. (X - 1)(X + 1)(X - 2)(X + 2)
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Which of the following is a factor of the polynomial x^2 - 5x + 6?

A. X - 2
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If the roots of the quadratic equation x² + px + q = 0 are 3 and -2, what is the value of p?

C. -5
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Which of the following equations has roots that are both real and equal?

A. X² - 4X + 4 = 0
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