Question

Simplify:

`{5}^( - 8) * {5}^(4)`
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Answer 1

5^ -4 or 1/ 5^4

Explanation:

5^ -8 * 5^4

We know that a^b * a^c = a^(b+c)

5^ -8 * 5^4 = 5^(-8+4) = 5^ -4

We know that a^ -b = 1/ a^b