Question

Solve the following equations: Using the substitution u=2x, show how the equation 22x−2x+1−15=0 can be written in the form u2−2u−15=0 Hence, solve the equation 22x−2x+1−15=0, giving your answer to 3 decimal places. Find the value of x for which log3⁡ x−2logx⁡3=1

Answer 1

zhd hndnfkzoddrrs5hd6js6sj6snuenydj7e