How do you solve #17^ { - 8x } = 4^ { - x - 5}#?
2 Answers
Explanation:
.
Whenever your variable is in the exponent you need to use logarithms to solve for it.
Using the rule of logs:
You need to isolate
Explanation:
To get the variable down out of the exponent, use a log function.
Exponent comes down:
Add
Pull
Divide both sides by:
Each of the three terms on the RHS (right hand side) is just a number. Either leave this answer the way it is - in log form, or use a calculator and round to two or three places - according to your instructor's preferences.