Diana.xL
  • Diana.xL
help?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Diana.xL
  • Diana.xL
http://prntscr.com/8icohg
zzr0ck3r
  • zzr0ck3r
Post the question where you put "help?"
zzr0ck3r
  • zzr0ck3r
and ideas?

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More answers

Diana.xL
  • Diana.xL
my answer is b. but im confused.
anonymous
  • anonymous
Yeah, B is the answer. What confuses you?
zzr0ck3r
  • zzr0ck3r
almost, you do want to square root both sides, but when we induce the square, we get a positive and negative answer.
zzr0ck3r
  • zzr0ck3r
the answer is not B
Diana.xL
  • Diana.xL
oh right
anonymous
  • anonymous
If 16 is X squared, then X is the square root of 16. Ok, now I'm confused.
Diana.xL
  • Diana.xL
so it would be c yea?
anonymous
  • anonymous
I swear it's B!
zzr0ck3r
  • zzr0ck3r
i.e. \[(-4)^2=(-4)(-4)=16=4*4=4^2=\]
anonymous
  • anonymous
Confusion is occuring.
anonymous
  • anonymous
I don't know what I'm doing it appears. I'm just gonig to go because this seems to be much more complicated than I thought :I
zzr0ck3r
  • zzr0ck3r
the answer to \(x=\sqrt{16}\) is \(x=4\) The answer to \(x^2=16\) is \(x=\pm 4\)
zzr0ck3r
  • zzr0ck3r
@FitzIncorporated it is a common mistake. when we write \(\sqrt{something}\) we mean the positive square root(just like if we write 1). But when we induce a square (when we take square root of both sides) we get two answers. In other words, the square root of 4 is 2 but there are two answers if I ask you what number squared is 4, they are 2 and -2
Diana.xL
  • Diana.xL
so its c? its lagging a bit
CGGURUMANJUNATH
  • CGGURUMANJUNATH
C
Diana.xL
  • Diana.xL
okTy :)
anonymous
  • anonymous
@zzr0ck3r Thank you :)
zzr0ck3r
  • zzr0ck3r
for sure :)

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