01-10-2017
Mathematics

contestada

The quadratic x^2-6x+66 can be written in the form (x+b)^2+c, where b and c are constants. What is b+c?

Please help me!!!!!!!!

Respuesta :

mathmate mathmate

01-10-2017

Complete the square!

x^2-6x+66
=((x-3)^2-9) + 66
=(x-3)^2+57
so
b=-3, c=57
b+c=-3+57=54

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