3^x=9x
please show workings
3 answers
this kind of problem is hard to solve in general. But, list the first few powers and multiples of 3, and it should not take long to find the answer.
yeah, but diz theory qstn. You mean it can't be solved?? what abt using theory of logarithm?
well, ok. I spoke to soon. Of course, if you know about logs, then
3^x = 9x
x log3 = log9 + logx
xlog3 - logx = log9
Unfortunately, that isn't any easier to solve than the original equation.
3^x = 9x
x log3 = log9 + logx
xlog3 - logx = log9
Unfortunately, that isn't any easier to solve than the original equation.