If f(x-1) = x\(^3\) + 3x\(^2\) + 4x - 5, find f(2)
FURTHER MATHEMATICS
WAEC 2022
If f(x-1) = x\(^3\) + 3x\(^2\) + 4x - 5, find f(2)
- A. 61
- B. 25
- C. 20
- D. 13
Correct Answer: A. 61
Explanation
x - 1 = 2
x = 3
f(2) = (3)\(^3\) + 3(3)\(^2\) + 4(3) - 5
f(2) = 27 + 27 + 12 - 5
= 61
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