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When the expression 3x^2-18x+55 written in the form a(x+d)^2+e, where a, d, and e are constants, then what is the sum a+d+e?

 Oct 6, 2020
 #1
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3x^2-18x+55                           divide first part  by 3

 

3 ( x^2-6x)   + 55                    'complete the square'

3 (x^2 -6x +9)    -9    + 55       simplify

 

3 ( x-3)2 + 46      You can finish......cheeky

 Oct 6, 2020

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