Formula 1/2 (A+B)C that is the formula
Having 15 fewer people go to a concert
we are given

Since, we have to find inverse of this function
step-1: we set f(x)=y

step-2: switch x and y

step-3: Solve for y

now, we can use quadratic formula


or
..............Answer
Answer: (m-3)(5m-2)
Step-by-step explanation:
5m^2-17m+6 factored is (m-3)(5m-2).