Question

solve for x : 2^(2x) - 9*2^(x) + 8 = 0

Answer 1

Answer:

Step-by-step explanation:

Let 2^(x) = y

Then the given equation is

y^(2) - 9y + 8 = 0

( y-8) (y-1) = 0

y = 8 (or) y = 1

2^(x) =8 = 2^(3)

x = 3

2^(x) = 1 = 2^(0)

x = 0

Solution set for x = {3, 0}