Find the zeros (roots, x-intercepts) for each po
3. f(x) = 5x^3- 20x

The answer is 225 miles per 4.5 hours. hope this ; )

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.