If a+b= - 1 then find the value of a3+ b3+ 3ab
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a^3+b^3+3ab=(a+b)^3
=(-1)^3
=-1
=(-1)^3
=-1
Answered by
0
I thing you wrote wrong question
It may be this
If a+b=-1 then find the value of a3+b3+3a2b+3ab2
If i am write then the answer is...
a+b=-1
cubing on both side
(a+b)3=(-1)3
a3+b3+3a2b+3ab2=-1 Ans
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