anonymous
  • anonymous
2(x +7)^2 = 64 what is x?
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
You need to isolate x. So start by dividing by 2.
anonymous
  • anonymous
that would be (x + 7) = 32 rite?
anonymous
  • anonymous
It would be \[(x+7)^2=32\]

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anonymous
  • anonymous
yeah ok
anonymous
  • anonymous
so where do i go from there>
anonymous
  • anonymous
Well you want to get x by itself and it's in a quantity that is squared. So you need to undo the square...
anonymous
  • anonymous
would that be \[x + 7 = 4\sqrt{2}\]
anonymous
  • anonymous
You bet :) Now just get x by itself!

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