Question

7^4 x 7 x 7^13 x 7^-20

Answer 1

[AI-generated answer — Bot GPT 3.5]

To simplify this expression, we can combine the powers of 7.

The rule for multiplying powers with the same base is to add the exponents.

Therefore, 7^4 x 7 x 7^13 x 7^-20 can be simplified as:

7^(4+1+13-20) = 7^(-2)

So, 7^4 x 7 x 7^13 x 7^-20 is equivalent to 7^(-2) or 1/49.