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13. | Which one of the following is the common factor of (4743 + 4343) and (4747 + 4347) ? | |
A. | (47 - 43) | |
B. | (47 + 43) | |
C. | (4743 + 4343) | |
D. | None of Above | |
Answer: Option B | |
Explanation: | |
When n is odd, (xn + an) is always divisible by (x + a). Each one of (4743 + 4343) and (4747 + 4347) is divisible by (47 + 43). |
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