Question

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

Answer 1

The expression is

$\frac{7^4}{7^{-5}}$

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:

$\frac{7^4}{7^{-5}}=7^{4-(-5)}=7^{4+5}=7^9$