Algebra 1 week 10 learn it
- 1. The Quadratic Formula For solving equations like: 𝑎𝑥2 + 𝑏𝑥 + 𝑐 = 0 𝑥 = −𝑏 ± 𝑏2 − 4𝑎𝑐 2𝑎
- 2. Example 1) Solve the equation by the Quadratic Formula: 𝑥2 + 𝑥 − 20 = 0 Step 1: What are a, b, and c? Step 2: Quadratic Formula Step 3: Simplify Step 4: Write two equations ± → + or − Step 5: Solve for x
- 3. Example 1) Solve the equation by the Quadratic Formula: 𝑥2 + 𝑥 − 20 = 0 Step 1: What are a, b, and c? Step 2: Quadratic Formula Step 3: Simplify Step 4: Write two equations ± → + or − Step 5: Solve for x
- 4. Example 1) Solve the equation by the Quadratic Formula: 𝑥2 + 𝑥 − 20 = 0 Step 1: What are a, b, and c? Step 2: Quadratic Formula Step 3: Simplify Step 4: Write two equations ± → + or − Step 5: Solve for x
- 5. Example 1) Solve the equation by the Quadratic Formula: 𝑥2 + 𝑥 − 20 = 0 Step 1: What are a, b, and c? Step 2: Quadratic Formula Step 3: Simplify Step 4: Write two equations ± → + or − Step 5: Solve for x
- 6. Example 1) Solve the equation by the Quadratic Formula: 𝑥2 + 𝑥 − 20 = 0 Step 1: What are a, b, and c? Step 2: Quadratic Formula Step 3: Simplify Step 4: Write two equations ± → + or − Step 5: Solve for x
- 7. Example 1) Solve the equation by the Quadratic Formula: 𝑥2 + 𝑥 − 20 = 0 Step 1: What are a, b, and c? Step 2: Quadratic Formula Step 3: Simplify Step 4: Write two equations ± → + or − Step 5: Solve for x
- 8. Example 1) Solve the equation by the Quadratic Formula: 𝑥2 + 𝑥 − 20 = 0 Step 1: What are a, b, and c? Step 2: Quadratic Formula Step 3: Simplify Step 4: Write two equations ± → + or − Step 5: Solve for x
- 9. Example 1) Solve the equation by the Quadratic Formula: 𝑥2 + 𝑥 − 20 = 0 Step 1: What are a, b, and c? Step 2: Quadratic Formula Step 3: Simplify Step 4: Write two equations ± → + or − Step 5: Solve for x
- 10. Example 2) Solve the equation by the Quadratic Formula: 𝑥2 − 6𝑥 + 9 = 0 Step 1: What are a, b, and c? Step 2: Quadratic Formula Step 3: Simplify Step 4: Write two equations ± → + or − Step 5: Solve for x
- 11. Example 2) Solve the equation by the Quadratic Formula: 𝑥2 − 6𝑥 + 9 = 0 Step 1: What are a, b, and c? Step 2: Quadratic Formula Step 3: Simplify Step 4: Write two equations ± → + or − Step 5: Solve for x
- 12. Example 2) Solve the equation by the Quadratic Formula: 𝑥2 − 6𝑥 + 9 = 0 Step 1: What are a, b, and c? Step 2: Quadratic Formula Step 3: Simplify Step 4: Write two equations ± → + or − Step 5: Solve for x
- 13. Example 2) Solve the equation by the Quadratic Formula: 𝑥2 − 6𝑥 + 9 = 0 Step 1: What are a, b, and c? Step 2: Quadratic Formula Step 3: Simplify Step 4: Write two equations ± → + or − Step 5: Solve for x
- 14. Example 2) Solve the equation by the Quadratic Formula: 𝑥2 − 6𝑥 + 9 = 0 Step 1: What are a, b, and c? Step 2: Quadratic Formula Step 3: Simplify Step 4: Write two equations ± → + or − Step 5: Solve for x
- 15. Example 2) Solve the equation by the Quadratic Formula: 𝑥2 − 6𝑥 + 9 = 0 Step 1: What are a, b, and c? Step 2: Quadratic Formula Step 3: Simplify Step 4: Write two equations ± → + or − Step 5: Solve for x
- 16. Example 2) Solve the equation by the Quadratic Formula: 𝑥2 − 6𝑥 + 9 = 0 Step 1: What are a, b, and c? Step 2: Quadratic Formula Step 3: Simplify Step 4: Write two equations ± → + or − Step 5: Solve for x
- 17. Example 2) Solve the equation by the Quadratic Formula: 𝑥2 − 6𝑥 + 9 = 0 Step 1: What are a, b, and c? Step 2: Quadratic Formula Step 3: Simplify Step 4: Write two equations ± → + or − Step 5: Solve for x