Solving Quadratics All Ways

• factoring.

• square roots.

• completing the square.

• the Quadratic Formula.

Tags

CCSS.HSA-REI.B.4B

a, b, and c as used in the Quadratic Formula will never be

• greater than 10.

• less than 0.

• a variable.

• a constant.

Tags

CCSS.HSA-REI.B.4B

Solve by Factoring

• A

• B

• C

• D

Tags

CCSS.HSA-REI.B.4B

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

Tags

CCSS.HSA-REI.B.4B

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

x² + 12x + 10 = 0

• x = -6 ± √26

• x = 6 ± √26

• x = 26 ± √6

• x = -26 ± √6

Tags

CCSS.HSA-REI.B.4B

Use the quadratic formula to solve 2x² + 2x - 12 = 0?

• -2, 3

• 2, 3

• 2, -3

• -2, -3

Tags

CCSS.HSA-REI.B.4B

Solve by Factoring

• A

• B

• C

• D

Tags

CCSS.HSA-REI.B.4B

Solve by Factoring

• A

• B

• C

• D

Tags

CCSS.HSA-REI.B.4B

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

Tags

CCSS.HSA-REI.B.4B