If q is a positive integer, then 3^q + 3^(q +1) = Choose the correct choice
A) 4^a	B) 3^a − 1	C) 3^(2a) + 1	D) 3^a*(a − 1)	E) 4(3^q)
3^q + 3^(q +1)   = 3^q + (3^q * 3^1)   = 3^q (1 + 3)   = 3^q(4)   Ans. 4(3^q)) 4(3^q)
<result>E</result>
If q is a positive integer, then 3^q + 3^(q +1) =