Question 305648
How do i go about solving questions such as 
----------------
4x^2/3= 18
{{{x^(2/3) = 4.5}}}
Cube both sides
{{{x^2 = 4.5^3}}}
x = ħ sqrt(4.5^3) = ħsqrt(91.125)
x =~ ħ 9.5459
----------------
Take the log of both sides
3^x=75
xlog(3) = log(75)
x = log(75)/log(3)
x =~ 3.929947