Question

If (5/2)²*(5/2)^a+5 =(5/2)^8 then find a

Answer 1

Step-by-step explanation:

(5/2)^2=25/4

(5/8)^8=390625/256

25/4*(5/2)x+5=390625/256

(5/2)x+5=390625/256| 25/4

(5/2)x+5=15625/64

(5/2)x=15625/64 -5

(5/2)x=15305/64