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The quadratic 3x^2-24x+72 can be written in the form a(x+b)^2+c, where a, b, and c are constants. What is a+b+c?

 Oct 2, 2021
 #1
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3x^2-24x+72

3 ( x^2 -8x)     + 72

3 (x-4)^2         + 72 -48

3 (x-4)^2 + 24          <====== you can finish

 Oct 2, 2021

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