Question and Answers Forum

All Questions      Topic List

Logarithms Questions

Previous in All Question      Next in All Question      

Previous in Logarithms      Next in Logarithms      

Question Number 86339 by frempongfaustina24@gmail.com last updated on 28/Mar/20

$$4^x+6^x=9^x$$$$$$$$$$

Answered by jagoll last updated on 28/Mar/20

$${\left(\frac{2}{3}\right)}^{2\mathrm{x}}+{\left(\frac{2}{3}\right)}^{\mathrm{x}}=1$$$$\mathrm{let}{\left(\frac{2}{3}\right)}^{\mathrm{x}}=\mathrm{t}$$$${\mathrm{t}}^2+\mathrm{t}=1\Rightarrow {\mathrm{t}}^2+\mathrm{t}-1=0$$$$\mathrm{now}\mathrm{it}\mathrm{easy}\mathrm{to}\mathrm{solve}$$

Terms of Service

Privacy Policy

Contact: info@tinkutara.com