Find value of a3 + b3 + 3ab, when value of a+b = 1?

1.	Find value of a3 + b3 + 3ab, when value of a+b = 1?
A.	1
B.	-1
C.	1/(3ab)
D.	1/(a-b)
Answer» B. -1

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Find value of a3&nbsp;+ b3&nbsp;+ 3ab, when value of a+b = 1?

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Find value of a3 + b3 + 3ab, when value of a+b = 1?