SOLUTION: 2log x-log x^3 = 4
solve for x
how I started the problem
log (x^2/X^3)=4
then
(x^2/x^3)=10^4
Algebra.Com
Question 278259: 2log x-log x^3 = 4
solve for x
how I started the problem
log (x^2/X^3)=4
then
(x^2/x^3)=10^4
Answer by jsmallt9(3758) (Show Source): You can put this solution on YOUR website!
Great start! You've done all the hard work. The rest is just simplify:
... and solve:
Multiply both sides by x:
Divide both sides by 10000:
With logarithmic equations you should always check your answers. You must make sure that none of the logarithms end up with a zero or negative argument. A quick visual check of the original equation tells you that 1/10000 will not make the argument of either logarithm zero or negative. So this answer checks.
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