SOLUTION: Use mental math to solve each equation. please help with these.. i have a really hard time understandin them.. your help will help me a bunch;] thanks 2^x=1/8 10^6x=1

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Use mental math to solve each equation. please help with these.. i have a really hard time understandin them.. your help will help me a bunch;] thanks 2^x=1/8 10^6x=1       Log On


   

Question 187473: Use mental math to solve each equation.
please help with these.. i have a really hard time understandin them.. your help will help me a bunch;] thanks


2^x=1/8

10^6x=1


log4^2=x ( i got 1.204, but im not sure about it)

solve 5^2x=125



Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Use mental math to solve each equation.
please help with these.. i have a really hard time understandin them.. your help will help me a bunch;] thanks

2^x=1/8
x = -3
----------
10^6x=1
x = 0
-------------
log4^2=x ( i got 1.204, but im not sure about it)
That's from a calculator, which is not mental math.
I suspect it should be
log%284%2C2%29+=+x Log of 2, base 4
x = 1/2
---------------
solve 5^2x=125
x = 1.5