Solve Quadratics

Solve by factoring: x² - 9x + 20 = 0

• x = -4 and x = -5

• x = 20 and x = -9

• x = 4 and x = 5

• x = -4 and x = 5

Solve by factoring: x² + 3x - 18 = 0

• x = -3 and x = 6

• x = 3 and x = -6

• x = -9 and x = 2

• x = 9 and x = -2

Solve for x by factoring.
x² -8x +12=0

• -6, -2
• -2, 6
• 2, 6
• -6, 2

Find the zeros.

• 0 and 4
• 0 and -4
• 0
• -4

What are the solutions?

• 0 and 8
• -2 and -4
• 3 and -1
• 2 and 4

Which is a zero of the graph?

• 0
• -1
• 1.5
• -3

What are the solutions?

• -2, 1
• 1, 2
• -1,2
• 0,-4

x²−6x+2=0

• 6±√7
• 3±√7
• 3±√11
• 6±√11

What do you need to add to complete the square?x² + 6x = 20

• 9
• 100
• 36
• 12

x²+8x+3=17

• 4±√30
• -4±√30
• 2, -10
• -2, 10