Setup, factor and solve the following equation :
x squared plus seventeen x equals negative seventy-two.
Understand & Think: Do you understand what is being asked and what you need to do? Do you have a list of things you know, ideas to try, and a plan for doing it? Identify the problem and list your strategies.
Problem: Solve the equation x squared plus seventeen x equals negative seventy-two.
Strategies:
1. Factor the equation to identify the roots.
2. Use the quadratic formula to solve the equation.
3. Check the answer by substituting it back into the equation.