Definition: this is a form of illegal redistricting in which a political district is redrawn for the sole
purpose of creating a constituency of a specific demographic (political party, racial category, ethnic group,
etc.)

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.