4/7 Solving Quadratics All Ways Review

Solve by Factoring

• A
• B
• C
• D

Solve by Factoring

• A
• B
• C
• D

Solve by Factoring

• A
• B
• C
• D

Solve by factoring.
z² - 6z - 27 = 0

• z = 3 or z = 9
• z = 3 or z = -9
• z = -3 or z = 9
• z = -3 or z = -9

Solve by Factoring

• A
• B
• C
• D

Solve using the square root method:

3x² - 27 = 0

• x = 4.9, -4.9

• x = 9, -9

• x = 3, -3

• No solution

Solve using the square root method: 5b² - 4 = 41

• b = 9, b = -9
• b = 3, b = -3
• b = 8, b = -8
• no solution

Solve using the square root method:  (x+6)²=49

• x=7,12
• x=±7
• x=1,-13
• x=43,-55

Solve using the square root method:

4(x+9)²=24

• {-9+√6,-9-√6}
• {3,-3}
• {3}
• so solution

Solve the following quadratics equation by completing the square...

x² + 12x + 8= 0

• x = -6 ± 2√7

• x = 6 ± 2√7

• x = 28 ± √6

• x = -28 ± √6