# 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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