Question

Questions Which expressions equivalent to 7 to the power of 4 over 7 to negative power of 5

Answer 1

The expression is

`(7^4)/(7^(-5))`

When you divide exponents with the same base number, in this example the base number is 7, you have to subtract the exponents. The base number remains unchanged:

`(7^4)/(7^(-5))=7^(4-(-5))=7^(4+5)=7^9`