(2/5)^x * (25/8)^x=125/64
(2/5 * 25/8)^x=(5/4)^3
(5/4)^x=(5/4)^3
x=3
(2/5)^x * (25/8)^x = 125/64
(50 / 40)^X = 125/64
(5/4)^X = (5/4)^3
X = 3
(2/5)^x * (25/8)^x=125/64
(2/5 * 25/8)^x=(5/4)^3
(5/4)^x=(5/4)^3
x=3
(2/5)^x * (25/8)^x = 125/64
(50 / 40)^X = 125/64
(5/4)^X = (5/4)^3
X = 3