Recent content by valon92

uhm, might have solved it: does this look correct? 1+3/2 ax + 3/8 a^2x^2 - 1/16 a^3x^3 + 1/128 a^4x^4

Any suggestions about expanding (1+ax)^3/2 for 5 non-zero terms? using pascal's triangle I am gettin horrible exponents while if i rewrite it as (Root of [1+ax])^3 it doesn't look much better as i don't have two clear values to use in the formula :\

solved it using the quadratic equation and replacing ln x with U after the change of base, thanks for the help!

Do you mean after the change of base or through the original?

yup using the change of base i got to: ln x/ln 81 + ln3/lnx = 2 but that's as far as i got. I tried simplifying them, getting a common denominator, bringing onto the other side but seems nothing that i do gets me to a solution

The equation is the following: Log81x + logx3 = 2 I've been bashing my head with change of base but i can't seem to get anywhere with it. 81 is rewritable as 34 which seems like it has something to do with the solution, but i just can't seem to get the hang of it. I always get stuck with...