If 5√5 x 5^3 + 5^-3/2 = 5 ^(a + 2), then the value of a is:  Choose the correct choice from the following options.
A) 0
B) 1
C) 2
D) 3
E) 4
5^1x5^1/2x5^3+5^-3/2 = 5^(a+2)   5^3/2x5^3+5^-3/2   5^9/2+5^-3/2   5^6/2   5^3 = 5^(a+2)   now, 3 = a+2   a=1   ANSWER:1
<result>B</result>
If 5√5 x 5^3 + 5^-3/2 = 5 ^(a + 2), then the value of a is: