Transcript Lesson 6.8

6-8 Solving Equations by Factoring
How to Solve
 1. Factor your problem using the best method if needed
 2. If the problem says =0 set each parenthesis equal to 0 and
solve for the variable
 3. If the problem says =number, move the number to the
other side, factor then solve for each parenthesis
 If there is no equal sign, set the problem equal to 0, factor
then solve each piece.
Solve
 1. 5𝑥 + 1 𝑥 − 7 = 0
Solve
 2. 𝑥 2𝑥 − 9 = 0
Solve
 3. 𝑥 − 3 𝑥 + 4 = 0
 4. 𝑥 − 7 𝑥 − 3 = 0
 5. 4𝑡 + 1 3𝑡 − 2 = 0
Solve
 6. 𝑥 2 − 8𝑥 = −16
Solve
 7. 𝑥 2 + 5𝑥 + 6 = 0
Solve
 8. 𝑥 2 − 𝑥 − 6 = 0
 9. 𝑚2 − 𝑚 = 0
 10. 𝑥 2 − 3𝑥 = 28
Find the Roots
 You must set it equal to 0!!!
 11. 𝑥 2 − 5𝑥
Find the Roots
 12. 4𝑥 2 − 25
Find the Roots
 13. 𝑥 2 + 6𝑥 + 9
 14. 𝑥 2 + 4𝑥
 15. 25𝑥 2 − 16