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2 votes
Square root x-2=7

answers are
a)51
b)27
c)23
I'm confused on how to do this ?

User Manecosta
by
7.9k points

2 Answers

2 votes
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. 
User XDS
by
7.8k points
5 votes
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
User Cuuupid
by
8.4k points

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