7^-11x7^13
To simplify this expression, we can use the rule of exponents that states: a^m * a^n = a^(m+n).
Therefore, 7^(-11) * 7^13 = 7^(-11+13).
Simplifying the exponent, we get 7^2.
Therefore, 7^-11 * 7^13 = 7^2.
The result is 49.
To solve this expression, you can combine the two exponents since the bases are the same. When multiplying powers with the same base, you add the exponents.
So, 7^-11 x 7^13 can be simplified as follows:
7^(-11+13) = 7^2 = 49.
Therefore, 7^-11 x 7^13 equals 49.