Question

14. Solve for x :
(i) 4^x-1 x (0.5)^3-2x =(1\8)^-x​

Answer 1

Answer:

5/7

Step-by-step explanation:

4^(x-1)  * (0.5)^(3-2x)=(1/8)^x

2^2(x-1)  *   2^(-(3-2x))   =   2^-3x

2^(2x-2-3+2x)  = 2^(-3x)

2^(4x-5)=2^(-3x)

4x-5=-3x

7x=5

x=5/7

Answer 2

Step-by-step explanation:

2²x .2-³-²x =2-³x

2²x-²-³+²x =2-³x

2⁴x-⁵ =-3x

4x-5 = -3x

7x =5

x = 5/7