If a2 + b2 = 80 and a - b = 4, then ab = ?A. 20B. 24C. 28D. 32 – McqOptions

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1.	If a2 + b2 = 80 and a - b = 4, then ab = ?A. 20B. 24C. 28D. 32
A.	C
B.	A
C.	D
D.	B
Answer» D. B

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