yrivers36
  • yrivers36
Please help with explanations. I know that I have to square both sides. sqrt of x =sqrt of x-5) +1
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
sqrt(x) =sqrt(x-5) +1 sqrt(x) - 1 = sqrt(x-5) square both sides: x - 2sqrtx + 1 = x - 5 -2sqrtx = -6 sqrtx = 3 x = 9 now check this solution if it is a solution..
anonymous
  • anonymous
i'll explain if you need 'em..
yrivers36
  • yrivers36
im confused with x-2sqrt +1=x-5

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anonymous
  • anonymous
ok...
anonymous
  • anonymous
|dw:1332629739131:dw|
anonymous
  • anonymous
this is just squaring the left side. the right side should be obvious... maybe?
yrivers36
  • yrivers36
yup I got it. had a few numbers in wrong spot
anonymous
  • anonymous
so are you good to the last line, x = 9? you need to check this...
yrivers36
  • yrivers36
I checked and it works
anonymous
  • anonymous
nevermind. it does work. sorry! :)
yrivers36
  • yrivers36
no problem thank you for your help

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