Question

Solve for x. 4 = 2^9 x

Answer 1

Answer: x = 2^-7 = 1/128

Step-by-step explanation:

Write 4 as 2^2.

Divide by 2^9 gives 2^2/2^9 = x

Write 2^a/2^b as 2^(a-b) or 2^-7

Write 2^-a as 1/2^a

Evaluate 2^7, well known to be 128.