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Problem 20 - Olympiad
Solve the equation x^2 - 7x + 12 = 0.
A. x = 3, x = 4
B. x = -3, x = -4
C. x = 2, x = 5
D. x = 1, x = 6
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Correct: A
The given equation is a quadratic equation. We can factor the left-hand side as (x - 3)(x - 4) = 0. Setting each factor equal to zero gives the solutions x = 3 and x = 4.