please help,what is the equation of the parabola in vertex form ? x^2+6x-y+3=0

Question

anonymous · Answer

x^2+6x-y+3=0
y = x^2+6x+3
   = x^2 + 6x + 9 - 9 + 3
   = (factorize the first three terms and simplify the last two terms)

anonymous · Answer

thanks but im still confused its multiple choice

anonymous · Answer

so itd be (x+3)^2=(y+6)?

anonymous · Answer

How do you factorize x^2 + 6x + 9?

tkhunny · Answer

The best approach for a multiple choice question is to work the problem in its entirety, get the right answer, and only then look at the choices.  It's not the fastest way to proceed, but it is the most sure.

anonymous · Answer

thanks?

anonymous · Answer

x^2 goes into 6x twice and then 6 goes into 9 once,i suck at math sorry

anonymous · Answer

(a+b)^2 = a^2 + 2ab + b^2
Use this to factorize x^2 + 6x + 9

anonymous · Answer

Behold !
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