Question

Найдите корень уравнения :
(14) ^5x-8=256

Answer 1

4^-5x+8 = 4^4
-5x+8 = 4
-5x = - 4
x = 4/5

Answer 2

(1/4 )^(5x-8) = 256
4 ^ -(5x-8)= 4 ^4
-(5x-8) = 4
-5x+8=4
-5x=4-8
-5x=-4
x=-4 : (-5)=4/5
x= 0,8