Any square is greater or equal 0. Therefore the formula possess the least value when (x – 2)² = 0. x – 2 = 0 x = 2 The correct answer is choice (D). ---------- Can you please explain how the +10 was broken down into the +4) + 6? I was able to get to 2 × (x² - 4x+10) but not any further.
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