1. 7.3 Solving Equations Using Quadratic Techniques
Using Substitution to solve Quadratic Equations

2. Quadratic form ax2 + bx + c = 0 2x2 – 3x – 5 = 0
This also would be a quadratic form of an equation

3. How would you solve
Use Substitution

4. How would you solve
Use Substitution
Let u = y2
u2 = y4

5. How would you solve
Use Substitution
Let u = y2
u2 = y4

6. How would you solve
Then Use Substitution
Let u = y2
u2 = y4

7. How would you solve
Then Use Substitution
Let Do both answers
work?

8. How would you solve
Then Use Substitution
Let Do both answers
work?

9. How would you solve
Then Use Substitution
Let

10. How would you solve
Then Use Substitution
Let Do both answers
work?

11. Homework
Page 363
#11 – 27 odd

12. Homework
Page 363
#12 – 28 even