anonymous
  • anonymous
Solve (z + 6)2 = 5. A. B. C. D.
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
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anonymous
  • anonymous
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anonymous
  • anonymous
for some reason it did not let me post the answers? @ssssss @kennedy467

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anonymous
  • anonymous
can you help? @radar
anonymous
  • anonymous
i had to draw them!
radar
  • radar
(z + 6)^2 = 5 Taking sq rt of both sides z + 6 =sqrt 5 \[z=-6 \pm \sqrt{5}\] using algebra.
anonymous
  • anonymous
so b?
anonymous
  • anonymous
radar
  • radar
Doesn't B express the same thing as I have?
anonymous
  • anonymous
yes so that is the answer ,correct!
anonymous
  • anonymous
radar
  • radar
Is that the same answer you got?
radar
  • radar
I was hoping you had confidence in yourself as you seem to be wavering about my confidence.
anonymous
  • anonymous
im so confused?
radar
  • radar
Did you look at my first post? Look at it again, and tell me what step confuses you.
anonymous
  • anonymous
you said z=-6 and the square root of 5 which is answer choice B
anonymous
  • anonymous
anonymous
  • anonymous
anonymous
  • anonymous
radar
  • radar
\[(z + 6)^{2}=5\]\[\sqrt{(z+6)^{2}}=\sqrt{5}\]\[z+6=\sqrt{5}\]Subtrac 6 from both sides of the equal sign.\[z=-6\pm \sqrt{5}\]The square root is both a + and - just as (-2)(-2) = 4 and (2)(2)= 4
anonymous
  • anonymous
so it is b?
anonymous
  • anonymous
radar
  • radar
You know I can't give you the answer, it is against the code of conduct. I have just about done all I can do for you.
anonymous
  • anonymous
i know , after checking your work my guess is b!
radar
  • radar
I would hope that it would not be a guess, but that you followed it step by step and reached a conclusion.

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