anonymous
  • anonymous
Factor Completely: x2 − 49
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
that is x^2 right?
anonymous
  • anonymous
yes
anonymous
  • anonymous
(x-7) (x+7)

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anonymous
  • anonymous
first of all do you know how to do this?
anonymous
  • anonymous
not really I suck at algebra.
anonymous
  • anonymous
(x + 7)(x - 7). You should use a^2 - b^2 identity.
anonymous
  • anonymous
hmmm okies
anonymous
  • anonymous
thank you though.
anonymous
  • anonymous
yes
anonymous
  • anonymous
sorry i wrote it wrong
anonymous
  • anonymous
its only (a^2- b^2)
anonymous
  • anonymous
49 = 7^2.
anonymous
  • anonymous
okies from that if you can tell that the looks are similar a^2 - b ^2 x^2 - 49 7 ^ 2 = 49
anonymous
  • anonymous
ok that looks better lol

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