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Basic Operations & Factorization
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Quadratic Equations

If the roots of the quadratic equation ax^2 + bx + c = 0 are 3 and 4, what is the value of b if a = 1 and c = 12?

Answer: A. -7
Using the relation between roots and coefficients, b = - (sum of roots) = - (3 + 4) = -7.
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