Change the following quadratic from standard form into vertex form by completing the square. y=-x²+14x-43 y=-(x-7)² +6 y =

Question

Change the following quadratic from standard form into vertex form by completing the square.
 y=-x²+14x-43
 y=-(x-7)² +6
 y = (x+7)² +6
 y=(x-7)2-43
 y = -(x +72-6
 y=(x-7)²+6

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