Download presentation

Presentation is loading. Please wait.

Published byCatherine Green Modified over 4 years ago

1
Factor. 1)x² + 8x + 16 2)y² – 4y – 21

2
Zero Product Property If two numbers multiply to zero, then either one or both numbers has to equal zero. If a b = 0 then either a=0, b=0, or both a and b equal 0.

3
Using the Zero Product Property, you know that either x + 3 = 0 or x – 5 = 0 Solve each equation. x = - 3 or x = 5 Solutions: {-3, 5} 1. Solve (x + 3) (x – 5) = 0

4
2. Solve (2a + 4) (a + 7) = 0

5
3. Solve (3t + 5) (t – 3) = 0

6
Solve (y – 3) (2y + 6) = 0 a.{-3, 3} b.{-3, 6} c.{3, 6} d.{3, -6}

7
Quadratic Equations A quadratic equation is an equation that contains a variable squared in it, and no higher powers of the variable. Ex:x 2 + 3x – 10 = 0 y 2 – 16 = 0 6a + a 2 = 16

8
Solving Quadratic Equations The zero product property can be used to solve quadratic equations. Steps: 1)Set the equation equal to zero. * You want the squared term to be positive 2)Factor. 3)T out. 4)Check with your calculator.

9
4. x 2 + 4x + 3 = 0

10
5. x 2 + 2x = 15

11
6. a 2 = -6a + 27

12
Solve. a 2 + 40 = 3a 1.{-8, 5} 2.{-5, 8} 3.{-8, -5} 4.{5, 8}

13
7. x 2 – 9 = 0

14
8. x 2 = 36

15
9. 9r 2 = 16

16
10. x 2 – 11x = 0

17
11. x 2 = 4x

18
Homework Homework 2/8 Worksheet Review Sheet

Similar presentations

© 2020 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google