Which expression is equivalent to the polynomial x^2-x-20

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.

It is e) i am not sure if you have any questions or need any

The correct answer would be shape of function b = 2× slope of function a.