A machine follows the rule f(x) = x³ - 6x² + 11x - 6. The value of x for which the machine five-five-zero output is ____?
- 1
- 2
- 3
- None of these
Explanation
f(x) = x³ - 6x² + 11x - 6 = 0
Try simple values:
f(1) = 1 - 6 + 11 - 6 = 0
=> x = 1 is a root
Last verified on 10-02-2026
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