Suppose the operation * is dened on the set of integers by a*b = a+2b.
Then for every two integers a and b, the value of a*(b*a) is the same
as	Pick
A) a*b	B) b*a	C) (3a)*b	D) b*(4a)	E) (5a)*b
One checks which of the choices is the same as a(ba) = a(b+2a) = a+2(b+2a) =   a +2b +4a = 5a + 2b. Since (5a) b = 5a + 2b, the answer is (e).   correct answer (5a)*b
<result>E</result>
Suppose the operation * is dened on the set of integers by a*b = a+2b.
Then for every two integers a and b, the value of a*(b*a) is the same
as