If the sides of a cube are doubled in length what happens to its volume

Lets say the side of the cube is x units in length.

The volume of the cube then is x * x * x = x^3 units cubed

After the sides are doubled, new length of cubes is 2x units

New volume is (2x) ^3 = 8 (x) ^3 units cubed.

The change in volume = 8 (x) ^3 divide by x^3 to get 8.

So the volume of the cube increases 8 times.