The difference is 39.
39
64 - 25 = 39
Five.
(25^2)•(5^3)
27
405-397 is 8 !
(x - 5)(x^2 + 1)
Five cubed in standard form is 53.
If you mean this little five 45 it means four taken to the fifth power. If it was two instad of five it would mean the number squared, if three the number cubed.
x(x - 25)(x - 25)
Five squared is 25
5x5x5 = 125 Five cubed is five to the 3rd power, which is (5x5)x5. The answer is 125.