Which equation represents a circle that contains the point (- 5, - 3) and has a center at (- 2, 1) ? Distance formula: sqrt (x 2 -x 1 )^ 2 +(y 2 -v 2 )^ 2

What’s the equation you are trying to solve to get x?

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.

Idon’t know actually is more difficult