Chapter 5: Exercises with Solutions
Chapter 5: Exercises with Solutions
Chapter 5: Exercises with Solutions
- No tags were found...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Section 5.4The Quadratic Formula73. Compute the discriminant b 2 − 4ac to determine the number of real solutions.If b 2 − 4ac > 0, then the equation has two real solutions.If b 2 − 4ac = 0, then the equation has one real solution.If b 2 − 4ac < 0, then the equation has no real solutions.In this case, b 2 − 4ac = (−4) 2 − 4(−7)(5) = 156 > 0, so the equation has two realsolutions.Version: Fall 2007