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If f(x - 2) = 4x2 + x + 7, find f(1)

Mathematics
JAMB 1985
If f(x - 2) = 4x2 + x + 7, find f(1)
  • A. 12
  • B. 27
  • C. 7
  • D. 46
  • E. 17
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Correct Answer: Option D
Explanation
f(x - 2) = 4x2 + x + 7

x - 2 = 1, x = 3

f(x - 2) = f(1)

= 4(3)2 + 3 + 7

= 36 + 10

= 46
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