This question practices evaluating quartic functions f(x) = x⁴ - 2x³ + x² - 5x + 6 at x = 1.
\( \text{If } f(x) = x^4 - 2x^3 + x^2 - 5x + 6, \text{ find the value of } f(1). \)
Choose one option:
Check each arithmetic operation step by step.
Compute powers, multiply by coefficients, and sum carefully.
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