Question

a.   Given y = 2^x, show that

can be written in the form

b.   Hence solve

Solution

a)    

We have the equation;

We are given that y = 2^x;

b)   

We are required to solve;

As demonstrated in (a) this can be written as;

Now we have two options.

For these values of y, we can find corresponding values of x from given equation;