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Answer :

Really226go

Answer:

y = (x - 3.5)^2 - 18.25

Step-by-step explanation:

y = x^2 – 7x - 6

y = (x^2 – 7x) - 6

y = (x^2 – 7x + 3.5^2 - 3.5^2) - 6

y = (x^2 – (2)(3.5)x + 3.5^2) - 3.5^2 - 6

y = (x - 3.5)^2 - 3.5^2 - 6

y = (x - 3.5)^2 - 18.25

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