Wednesday
March 29, 2017

Post a New Question

Posted by on .

Solve
3 log x = 1 + log (4x+5)/ log 2

  • math - ,

    3 log x = 1 + log (4x+5)/ log 2

    That dividing logs stuff is quite unusual for introductory log problems. I will solve

    3 log x = 1 + log (4x+5) - log 2
    x^3 = 10*(4x+5)/2
    2x^3-40x-50 = 0
    2(x-5)(x^2+5x+5) = 0
    and that's easy

    If you really did mean to divide the logs, then I cannot find any real roots.

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question