SOLUTION: How do we change this into vertex form ½x-2x+7

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Question 1113316: How do we change this into vertex form ½x-2x+7
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
I'm assuming you mean,
f%28x%29=x%5E2%2F2-2x%2B7
f%28x%29=%281%2F2%29%28x%5E2-4x%29%2B7
f%28x%29=%281%2F2%29%28x%5E2-4x%2B4%29%2B7-%281%2F2%29%284%29
Now finish it.