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When the expression 3x^2 - 28x + 55 is written in the form a(x + d)^2 + e, where a,d , and e are constants, then what is the sum a+d+e?

 Dec 23, 2020
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3 (x^2 - 28/3 x)     + 55

3 ( x - 14/3)2    - 196/3  +55

3 (x-14/3)2 -31/3

 

     take it from here ....

 Dec 23, 2020

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