Find f(–2) for the function f(x) = 3x2 – 2x + 7.

Substitute −2 for x: f(−2) = 3(−2)² − 2(−2) + 7. Since (−2)² = 4, this becomes 3(4) + 4 + 7 = 12 + 4 + 7 = 23, so the answer is 23.

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