Cubic identity 3
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Contents
About the activity
| To verify [math]a^3-b^3 = (a-b)(a^2+ab+b^2)[/math], using unit cubes |
Get ready with
27 Unit cubes
What is a unit cube?
A unit cube is nothing but a cube all of whose sides are 1 unit long as shown below.
- We say its dimension is 1 X 1 X 1.
- The volume of a 3-dimensional unit cube is 1 cubic unit.
- By joining unit cubes we can form cubes and cuboids of varied dimension.
Read more about using unit cubes [1]
Instructions for the activity
Download the attached file File:Cubesactivity3.pdf
Task for you
By taking different values of a and b, verify the result.
