Ten > Quadratic Equation

Asked by Basanta · 2 years ago

The difference of the present ages of two sisters is 5 years and the product of their ages is 84.

1. If the age of the younger sister be x years then write the age of elder sister in terms of x.
2. Find the value of x. 
3. Find the present age of the elder sister. 
4. Find their ages after 10 years.