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5 votes
216=(1/36)^(x-1) solve for x

User Csabapap
by
5.1k points

2 Answers

3 votes

Answer:

x = -1/2 or x = (2 i π n)/log(36) - 1/2 for n element Z

not sure what you needed but I gave both solutions.

Explanation:

Solve for x over the real numbers:

216 = 36^(1 - x)

216 = 36^(1 - x) is equivalent to 36^(1 - x) = 216:

36^(1 - x) = 216

Take reciprocals of both sides:

36^(x - 1) = 1/216

Take the logarithm base 36 of both sides:

x - 1 = -3/2

Add 1 to both sides:

Answer: x = -1/2

_____________________________________________________

Solve for x:

216 = 36^(1 - x)

216 = 36^(1 - x) is equivalent to 36^(1 - x) = 216:

36^(1 - x) = 216

Take reciprocals of both sides:

36^(x - 1) = 1/216

Take the logarithm base 36 of both sides:

x - 1 = (2 i π n)/log(36) - 3/2 for n element Z

Add 1 to both sides:

Answer: x = (2 i π n)/log(36) - 1/2 for n element Z

User Koschei
by
4.7k points
5 votes

Answer:

Answer is -1/2

Explanation:

6^3= 6^-2x+2

3=-2x+2

2x=2-3

2x=-1

x=-1/2

User Macbernie
by
5.3k points
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