If \(y = (x – 5)^2 + (x + 1)^2 – 6,\) then y is least when \(x =\)

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If \(y = (x – 5)^2 + (x + 1)^2 – 6,\) then y is least when \(x =\)

A. \(-2\)
B. \(-1\)
C. \(0\)
D. \(2\)
E. None of the above

Answer:D

Source: Official Answer