This question practices evaluating quadratic functions f(x) = x² + 2x + 1 at x = 1.
\( \text{Given the function } f(x) = x^2 + 2x + 1, \text{ find the value of } f(1). \)
Choose one option:
Check squaring, multiplication, and addition carefully.
Substitute x = 1 and sum the terms carefully.
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