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OpenStudy (anonymous):
Solve by completing the square and state the coordinates of the vertex: y=-3x^2-18x+4
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OpenStudy (anonymous):
I get most of the steps, but I am confused when I reach -3x(x+3)^2-9+4 because on my answer sheet, it shows -3(x+3)^2+27+4 and I was wondering how you get the 27?
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