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Wednesday, 12 June 2019

How to Find the Cube of (a+b) ?

You might be in doubt how to find the cube of  (a+b) or (a+b)3
Here, 
(a+b)3    
= (a+b)(a+b)(a+b)
(a+b)(a+b)
(a2+2ab+b2(a+b)
=  a3+2a2b+ab2+a2b+2ab2+b3
a3+3a2b+3ab2+b3
 (Hence (a+b)3 = a3+3a2b+3ab2+b3
You can see the give 3-D video about the how to find the cube of (a+b)?



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