70 likes | 297 Views
Traffic to your website in a continuous way is a big way to boost up your website popularity and help you in getting leads with website. Know all facts on how to grow traffic on your website.
E N D
Chapter 6-8Solving Equations by Factoring CA 14.0 Solve a quadratic equation by factoring By: Emily Ong
Example: Textbook Page 290 Problem: 61 • b(b+9)=4(5+2b) • b²+9b = 20+8b • -8b-20=-20-8b • b²+b-20=0 • (b+5)(b-4)=0 (b+5)=0 (b-4)=0 -5-5+4+4 b=-5 b=4 b=-5,4 • Distribute the “b” and the “4” • Put all of numbers on one side • Set it to zero • Factor • Solve the two equations separately -20 5 -4 1
Example: Workbook Page 25 Problem: 24 • Factor • Solve the two • equations separately • y2-11y +28=0 • (y-4)(y-7)=0 (y-4)=0 (y-7)=0 +4+4+7+7 y= 4,7 28 -4 -7 -11