If a – b = 3 and a2 + b2 = 29, find the value of ab.	Choose the correct choice from the following options.
A) 10 B) 12 C) 15 D) 18 E) 19
EXPLANATION   2ab = (a2 + b2) – (a – b)2   = 29 – 9 = 20   ab = 10.   10nswer 10
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If a – b = 3 and a2 + b2 = 29, find the value of ab.