What is the monotonicity of the function f (x) = x & # 178; - 2aX + 1? | Math enthusiast | Mathematical art

What is the monotonicity of the function f (x) = x & # 178; - 2aX + 1?

The opening is upward, and the axis of symmetry is x = a
When x > = a, it increases monotonically;
When x

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