Answer:
3x² - 12x + 13
Explanation:
given
f(x) = 3(x - 2)² + 1 ← expand (x - 2)²
= 3(x² - 4x + 4) + 1
= 3x² - 12x + 12 + 1
= 3x² - 12x + 13 ← in standard form
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