If a + b – c = 7, ab – bc – ca = 21, then a3 + b3 – c3 + 3abc – McqOptions

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1.	If a + b – c = 7, ab – bc – ca = 21, then a3 + b3 – c3 + 3abc =
A.	117
B.	98
C.	124
D.	–98
Answer» E.

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