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Win_the_gmat
- Junior | Next Rank: 30 Posts
- Posts: 15
- Joined: Mon Dec 24, 2012 6:58 am
Hi experts,
I would like to know the difference between the 2 equations:
x^2 = 16 and x = sqrt 16
why in the 1st case it has 2 solutions 4 and -4 but in the 2nd case only 1 solution i.e. x = 4.
I would like to know the difference between the 2 equations:
x^2 = 16 and x = sqrt 16
why in the 1st case it has 2 solutions 4 and -4 but in the 2nd case only 1 solution i.e. x = 4.
