Which equation represents the circle described !

I think the answer is B (x-4)^2+(y-3)^2=2

Once you complete the square on the equation you get:
(x-4)^2 + (y-3)^2 = 1
The answer is C

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.