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lovergirl18 lovergirl18
  • 21-11-2016
  • Mathematics
Answered

square root x-2=7
answers are
a)51
b)27
c)23
I'm confused on how to do this ?

Verified Answer :

aaveria aaveria
  • 21-11-2016

it's A because to remove the radical you do x-2 squared and 7 squared which you will get x-2=49 and then subtract -2 from 49 which gives you 51

Answer Link
lambemily03 lambemily03
  • 21-11-2016

Since you have answer choices you would want to try them, so first put the square root of 51-2 = 7. Minus two then find the square root of 49, and it so happens to be 7.

Answer Link

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