make
How would I do this question below:
11. Solve and check for extraneous roots. Where necessary, round answers to 2 decimal places.
The 2x is the power of 3.
I have no idea how to even start that. I tried dividing it by 7 first. Didn't work. Then I tried bringing over the 12 and that didn't work either.
Using the quadratic equation, I found roots to be:
1.303
-2.303
So, when solving , something went awry.
What pickslides said about negative logs holds true here, so -2.303 isn't a solution.
When you solve for x
using logs, x = .1644
which is probably what the book is talking about.