If a and b is a positive integer, then 2^a + 2^(b + 1) =	Select the correct option:
A) cannot be determined B) 2^(a + b) C) 2a+b D) 2^(a + 1+b) E) none
If a and b is a positive integer, then 2^a + 2^(b + 1) =   2^a + 2^(b+ 1)   2^(1+a+b)   Answer:option 2^(a + 1+b)
<result>D</result>
If a and b is a positive integer, then 2^a + 2^(b + 1) =