1992 AMC 12 Problem 28
Attempt Problem 28 of the 1992 AMC 12 below, then check your answer against the professionally curated solution from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 1992 AMC 12 solutions, or check the answer key.
All problems are used with official legal permission of the Mathematical Association of America (MAA).
28.
Let The product of the real parts of the roots of is
Answer: B
Small hint:
Apply the quadratic formula and write
Big hint:
Solve and to determine the real parts of the two roots
Solution:
The quadratic formula gives Since the roots are Their real parts have product
Thus the correct answer is B.
Problem 28 in other years
- 1950 AMC 12
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