Marvin is making his class schedule for next year. How many different class schedules are possible if he must have 6 classes and he has 14 classes to choose from? A 2,162,160
B 121,080,960
C 3003
D 720
E None of the above

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.

Ithink that it is 384000