In Simplifying 7 to the 11th power and 7 to the 9th power, Alexis decides to use her calculator to find 7 to the 11th power and 7 to the 9th power indiviually before dividing. Show how Alexis could use the laws of exponents to arrive at the answer more easily.

Answer 1

assume you are doing
7^11
------
7^9

Which is
7^9 * 7^2
----------
7^9

so 7^2
which is 49

to multiply, add exponents
to divide, subtract exponents
to raise to power, multiply exponents

Answer 2

thanks so much

Answer 3

You are welcome !