If a+b = 12 and ab= 27, find the value of a3+b3.
We know the identity:
Given a+b=12 and ab=27, substituting values in the identity above, we get:
= 
= 1728 - 972
= 756
If a+b = 12 and ab= 27, find the value of a3+b3.
We know the identity:
Given a+b=12 and ab=27, substituting values in the identity above, we get:
=
= 1728 - 972
= 756