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29 August, 00:37

Square root x-2=7

answers are

a) 51

b) 27

c) 23

I'm confused on how to do this?

+3
Answers (2)
  1. 29 August, 00:39
    0
    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
  2. 29 August, 00:52
    0
    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.
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