Jordiebernardine04id
Answered

Directions: Solve the following Quadratic Equations by Factoring, Completing the Square and Using Quadratic Formula.

1. x² + 6x +9=0

2. x² +9x+ 20 = 0

3. 2x² - 10x+8=0​​

Sagot :

Maynadine704id

Answer:

1. x² + 6x + 9 = 0

(x + 3)(x + 3) = 0

x = -3

2. x² + 9x + 20 = 0

(x + 5)(x + 4) = 0

x = -5, x = -4

3. 2x² - 10x + 8 = 0

2 (x - 4)(x - 1) = 0

x = 4, x = 1