I am positive that the answer to this equation is k exponent of 2 divided by k exponent of 2 because when you do 7 x 7 that equals 49, so 50 - 49 equals 1. Now you have to figure out an equation that equals 1. Which is k exponent of 2 divided by k exponent of 2.
Hope you make a good grade :D
Have a great day :)