Solving Quadratics

Solve:
(x - 2) (x + 4) = 0

• x = 2, x = -4
• x = -2, x = 4
• x = 4
• x = 2

Solve:
x² = 4

• x = 4
• x = 2
• x = 2, x = -2
• x = 1/2, x = - 1/2

Solve:
x² +  7x + 12

• x = 3
• x = 7, x = 12
• x = 3, x = 4
• x = -3, x = -4

What would the FACTORS be for the following:
x² -  2x  - 8

• (x - 2) (x + 4)
• (x - 4) (x + 2)
• (x - 2) ( x - 4)
• (x + 2) (x + 4)

Solve:
x² + 12x + 20 = 0

• (x + 10) ( x + 2)
• (x - 10) (x - 2)
• (x + 10) (x - 2)
• (x - 10) (x - 2)

Solve:
(x - 10) ( x + 3)

• x = 10
• x = 3
• x = 10, x = -3
• x = 10, x = 3

Solve:
(2x - 4) (3x + 9)

• x = 2, x = -3
• x = -2, x = 3
• x = 4, x = -9
• x = 2, x = 3

What is the best way to factor the following:
2x² + 4x - 7x - 14 = 0

• GCF
• Grouping
• Quadratic Formula
• Square Root

What is the best way to solve this:
4x² + 12x = 0

• Grouping
• Quadratic Formula
• GCF
• Square Root 

Solve:
x² - 11x + 26 = 0

• x = -2, x = 11
• x = 2, x = -13
• x = -2, x = 13
• x = -11, x = 26