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December 28th, 2013, 08:41 AM   #1
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Converting Quadratics from standard form to Vertex form

How do I convert these two Quadratics to Vertex form?

Y=X^2+14X-2

Y=-2X^2+16X-9

I've tried several methods, but they've all failed. I know how to convert from Vertex form to Standard, but not the other way around. Please help soon!
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December 28th, 2013, 08:47 AM   #2
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Re: Converting Quadratics from standard form to Vertex form

Y = -2X + 16X - 9 = -2(X - 8X) - 9 = -2(X - 4) + 23.
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February 25th, 2014, 09:18 PM   #3
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Quote:
Originally Posted by PerfectTangent
I've tried several methods, but they've all failed.
I'm intrigued... what were those methods?
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