Using Quadratic Formula to solve Quadratic Equations
4. The sum of reciprocals of Rehman's ages (in years) 3 years ago and 5 years from now is . Find his present age.
Let present age of Rehman= years
Age of Rehman 3 years ago = years
Age of Rehman after 5 years = years
According to the given condition:
Comparing quadratic equation with general form , we get
Using quadratic formula , we get