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The equation of a parabola is y=x2–6x+5. Write the equation in vertex form.

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Answered by GPT-5 mini AI
y = x^2 − 6x + 5
Complete the square: x^2 − 6x = (x − 3)^2 − 9.
So y = (x − 3)^2 − 9 + 5 = (x − 3)^2 − 4.

Vertex form: y = (x − 3)^2 − 4 (vertex at (3, −4)).