Tough and Tricky questions: Exponents.
If 6^(3x+4)*2^(2y+1) = 36^x*16^y, then x + y =
Options:
A) -7/2
B) -1/7
C) 3/7
D) 7/2
E) -3/7
Here is my solution.   6^(3x+4)*2^(2y+1) = 36^x*16^y   Here RHS 36^x*16^y= 6^(2x)*2^(4y)   Equating powers on both sides--&gt;   3x+4=2x , thus x=-4 and   2y+1=4y giving y=1/2   So, x+y=-7/2   Option: -7/2
<result>A</result>
Tough and Tricky questions: Exponents.
If 6^(3x+4)*2^(2y+1) = 36^x*16^y, then x + y =