Binomial Cube
A 3D cube that comes apart shows the cube of a sum and of a difference, and the sum and difference of cubes. Change a and b and turn the cube.
Free, runs in the browser, no sign-in or installation.
- Subject
- Mathematics
- Area
- Algebra and Functions
- Level
- Secondary school
What you can do
- Choose (a + b)³, (a − b)³, a³ − b³ or a³ + b³, and set a and b to whole numbers from 1 to 6.
- Take the cube apart with a button or the Gap slider, drag to turn it and use the mouse wheel to resize it.
- Tap a term of the formula or a piece of the cube to highlight the matching pieces; the formula is also worked out with your numbers.
- Show or hide the labels on the pieces, their volumes and the edge lengths.
- Download the view as a PNG with a white or transparent background.
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