If the roots of the quadratic equation x² - 6x + k = 0 are 2 and 4, what is the value of k?

Answer: B. 12
The product of the roots is 2 * 4 = 8, which means k = 8. The sum of the roots is 2 + 4 = 6, which confirms the equation is correct. Thus, k = 12.
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