Sum & Difference of 2 Cubes
Sum & Difference of Cubes
Sum & Difference of Cubes
These polynomial identities give the factorisation for the sum and difference of cubes. Commit them to memory.
These polynomial identities give the factorisation for the sum and difference of cubes. Commit them to memory.
a3 + b3 = (a + b)(a2 – ab + b2)
a3 – b3 = (a – b)(a2 + ab + b2)
Explore!
Explore!
Use the applet below to visualise the formula for the difference of cubes. Click on Transform! to start the animation.
Use the applet below to visualise the formula for the difference of cubes. Click on Transform! to start the animation.
Test Yourself!
Test Yourself!
Use the applet below to self-assess your understanding of factorising the sum and difference of 2 cubes.
Use the applet below to self-assess your understanding of factorising the sum and difference of 2 cubes.