Find a^3 +b^3 if a+b=12 , ab=27

1.	Find a^3 +b^3 if a+b=12 , ab=27
Answer» This question we can done by the identity (a+b)^3(a+b)^3=a^3+b^3+3ab(a+b)so, we have a+b=12 and ab=27(12)^3=a^3+b^3+3(27)(12)1728=a^3+b^+9721728-972=a^3+b^3a^3+b^3=756

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