3. Now consider equations of the form x-a-√√bx+c, where a, b, and c are all positive integers and b > 1.
(a) Create an equation of this form that has 7 as a solution and an extraneous solution. Give the
extraneous solution.
(b) What must be true about the value of bx+c to ensure that there is a real number solution to the
equation? Explain.
Answer: