If a and b are two positive real numbers such that a + b = 20 and ab = – McqOptions

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1.	If a and b are two positive real numbers such that a + b = 20 and ab = 4, then the value of a3 + b3 is:
A.	7760
B.	240
C.	8000
D.	8240
Answer» B. 240

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