anonymous
  • anonymous
http://gyazo.com/5eb38d437dbb26489f3bc5088504a8b5
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
PLS MEDAL AND FAN
anonymous
  • anonymous
@tkhunny
anonymous
  • anonymous
@vera_ewing pleaseeeeeeeeeeeeeeee

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tkhunny
  • tkhunny
What say you? Where does it go horribly wrong?
anonymous
  • anonymous
I have no idea. A or B?
tkhunny
  • tkhunny
Never "Completed the Square"? You'll have to follow the algebra and see. Hint: \(r + s^{2} \ne (r+s)^{2}\) - generally.
anonymous
  • anonymous
I DONT HAVE A SINGLE IDEA HOW TO DO THIS.
misty1212
  • misty1212
wow what a mean question !!
misty1212
  • misty1212
you have to look at every single line to see where the mistake is made and even then it is confusing because they corrected in in the end
tkhunny
  • tkhunny
It's just completing the square. It's not a difficult thing. You should have this skill unless you haven't been paying attention in class.
misty1212
  • misty1212
we can take them step by step if you like, it really has nothing to do with completing the square, not to disagree with @tkhunny
anonymous
  • anonymous
I'm helping my daughter mate.... @tkhunny
tkhunny
  • tkhunny
Disagree, if you wish, but it is EXACTLY completing the square. That is where the Quadratic Formula comes from.
misty1212
  • misty1212
yes i know that, i mean this question has nothing to do with completing the square, they are only asking you to find a typo it is copy editing is all, has nothing to do with the math involved
misty1212
  • misty1212
it is like "find the difference between these two pictures" don't think about math, just find one line where they copied something different than the previous line
anonymous
  • anonymous
C? Ugh. I don't know.
misty1212
  • misty1212
step 6 \[x+\frac{b}{2a}=\sqrt{\frac{-c}{a}+\left(\frac{b}{2a}\right)^2}\] step 7 \[x=-\frac{b}{2a}+\sqrt{\frac{-c}{a}+\left(\frac{b}{\color{red}{4a}}\right)^2}\]
misty1212
  • misty1212
it is just a typo, has nothing whatsoever with the quadratic formula, completing the square, any math at all just a simple typo for you to find
anonymous
  • anonymous
So d?
misty1212
  • misty1212
what makes it worse it it was rectified in the next step, so the actual formula is correct
misty1212
  • misty1212
yeah D
misty1212
  • misty1212
if this is the math your daughter is doing, find her another school
tkhunny
  • tkhunny
Try again. If you complete the square, and follow the process, you will detect any typo. Seriously, this is a legitimate math question. The solution is simple and more rational if you treat it so. The FIRST error is IN step 6, not after it. If you had completed the square properly, you would have seen it.

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