rewrite using a single positive exponent
7^-7(7^3)
1/7^(7-3) = 1/7^4
To rewrite the expression using a single positive exponent, we can follow the rule that when we have the same base raised to different exponents, we can simplify by adding the exponents.
So, we have 7 raised to the power of -7 multiplied by 7 raised to the power of 3.
We can rewrite this as 7^(-7 + 3).
Simplifying the exponent, we have 7^(-4).
Therefore, the expression 7^-7(7^3) can be rewritten as 7^(-4).