find x: e^(3x-9) = 8
use rules: ln e^x = x*ln(e) and ln(e) = 1. find natural log of each side: (3x-9)ln(e)=ln(8). rearrange: x= (ln(8)+9)/3
BY
Related Maths A Level answers
All answers ▸Find the turning point of the function y=f(x)=x^2+4x+4 and state wether it is a minimum or maximum value.
Differentiate e^2x
You're on a game show and have a choice of three boxes, in one box is £10, 000 in the other two are nothing. You pick one box, the host then opens one of the other boxes showing it's empty, should you stick or switch?
How do I integrate log(x) or ln(x)?