Hi everyone, thank you for your help. First of all, i dont expect a straightforward answer, more like hints and clues to work it out myself so i can actually learn something.
Eq1) 5x2^(x+1) - 12 = 0
eq2) 3x2^x = 4x3^(-x)+7
a) Which one of the above can NOT be solved using logs?
b) Solve the equation that is the answer to (a) using a G.C. Give a sketch of your solution.
c) Solve the other equation using logs and give answer in log form.
[by the way, how do you type in the equations as you would actually write them?]
Construct an exponential equation that follows this graph :
Written in the form y = a X b^(cx) + d
= a X (b^c)^x + d
a X k^x + d