If `(log)_2(a+b)+(log)_2(c+d)geq4.` Then find the minimum value of the expression `a+b+c+ddot`

If log_(2)(a+b)+log_(2)(c+d)>=4. Then find the minimum value of the expression a+b+c+d.

If log_2(a+b)+log_2(c+d)ge4 . Then the minimum value of the expression a+b+c+d is

Let a , b , c , d be positive integers such that (log)_a b=3/2a n d(log)_c d=5/4dot If (a-c)=9, then find the value of (b-d)dot

Let a , b , c , d be positive integers such that (log)_a b=3/2a n d(log)_c d=5/4dot If (a-c)=9, then find the value of (b-d)dot

Let a , b , c , d be positive integers such that (log)_a b=3/2a n d(log)_c d=5/4dot If (a-c)=9, then find the value of (b-d)dot