SOLUTION: please help me solve this equation in vertex form y=-x2+8x-20

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Question 1074270: please help me solve this equation in vertex form y=-x2+8x-20
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
y=-x%5E2%2B8x-20

y=-%28x%5E2-8x%2B20%29
-%28x%5E2-8x%2B16-16%2B20%29
-%28%28x-4%29%5E2%2B20-16%29
-%28%28x-4%29%5E2%2B4%29

highlight%28y=-%28x-4%29%5E2-4%29



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Term for completing the square, %28-8%2F2%29%5E2=16