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Complete the square help needed dont really understand , thank you 

 Sep 12, 2018
 #1
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\(x^2-10x+27\\ x^2-10x=-27\\ x^2-10x+(\frac{-10}{2})^2=-27+(\frac{-10}{2})^2\\ x^2-10x+25=-27+25 \)

1st choice

 Sep 12, 2018

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