If a3 – b3 = 1603 and (a – b) = 7, then (a + b)2 – ab is equal t – McqOptions

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1.	If a3 – b3 = 1603 and (a – b) = 7, then (a + b)2 – ab is equal to∶
A.	458
B.	338
C.	229
D.	648
Answer» D. 648

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