Question Number 16829 by tawa tawa last updated on 26/Jun/17
$$\mathrm{Solve}\:\mathrm{for}\:\mathrm{x} \\ $$$$\mathrm{6}\left(\mathrm{4}^{\mathrm{x}} \:+\:\mathrm{9}^{\mathrm{x}} \right)\:=\:\left(\mathrm{13}.\mathrm{6}\right)^{\mathrm{x}} \\ $$
Commented by mrW1 last updated on 26/Jun/17
$$\mathrm{please}\:\mathrm{check}\:\mathrm{the}\:\mathrm{question}. \\ $$$$ \\ $$$$\mathrm{only}\:\mathrm{numerical}\:\mathrm{solution}\:\mathrm{possible} \\ $$$$\mathrm{x}\approx\mathrm{4}.\mathrm{40703} \\ $$