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Find the remainder when 3x3 + 5x2 - 11x + 4 is divided by x...

Mathematics
JAMB 2004

Find the remainder when 3x3 + 5x2 - 11x + 4 is divided by x + 3
  • A. -4
  • B. 4
  • C. 1
  • D. -1
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Correct Answer: Option C
Explanation
x = -3
substitute x = -3 in 3x3 + 5x2 - 11x + 4
3(-3)3 + 5(-3)2 - 11(-3) + 4
-81 + 45 + 33 + 4
-81 + 82
= 1

There is an explanation video available below.


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Explanation Video

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