Chaoyun L. answered 11/03/15
Tutor
1
(1)
Master of Math with concentration in Statistics
The property says a(b+c) = ab+ac.
so 9b5(4-8b2)= 9b5*4-9b5*8b2= 36b5-72b7
Anne H.
asked 11/03/15
Chaoyun L. answered 11/03/15
Master of Math with concentration in Statistics
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