Question

I started with 10 cubes and 5 cubes—that is 15 cubes—and then I took away the extra 2 cubes and got 13 cubes.

Answer 1

The expression representing a perfect cube in this context is
`\((10 + 5 - 2)^3\)`, which simplifies to
`\(13^3\)`.

Step-by-step explanation:

To represent the situation where you started with 10 cubes, added 5 cubes, and then took away 2 cubes, resulting in a total of 13 cubes, the expression for a perfect cube can be written as:

`\((10 + 5 - 2)^3\)`

This simplifies to:

`\[ (13)^3 \]`

Therefore, the expression that represents a perfect cube in this context is
`\((10 + 5 - 2)^3\)`.