Incremental distance

Algebra Level 2

The distance between two numbers -2 and 7 on a number line is \(7 - (-2) = 9,\) as shown above.

Now, we have three numbers \(a, a^2, a^3\) on a number line, as shown below. If the distance between \(a\) and \(a^2\) is 6, what is the distance between \(a^2\) and \(a^3?\)

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