Solving Quadratics by Square Roots and Quadratic Formula

• -4, 2
• -2, 4
• -16
• -4

Tags

CCSS.HSA-REI.B.4B

Solve the following for x by using the Quadratic Formula

2x²+6x=7

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• 
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Tags

CCSS.HSA-REI.B.4B

Decide on the best method:
3a² + 13a = -4

• Square Root Method

• Factor Method

• Complete the Square

• Quadratic Formula

Tags

CCSS.HSA-REI.B.4B

Solve Using the Quadratic Formula
 x² + 4x - 40 = -8

• -10 & -4

• -4 & 10

• -8 & 4

• 8 & -4

Tags

CCSS.HSA-REI.B.4B

Solve the following quadratic function.

x² = 8

• x = ±4

• x = ±2√2

• x = ±4√2

• x = ±√4

Tags

CCSS.HSA-REI.B.4B

Which of the following are steps to solve a quadratic equation by square roots. (check all that apply)

• Identify a, b, and c

• get the squared value by itself

• cancel the square by taking the square root of each side

• remember to include the positive and negative root

• set the equation equal to zero

Tags

CCSS.HSA-REI.B.4B

Solve

x² = 121

• x = 60.5

• x = ± 11

• x = ± 12

• x = 11

Tags

CCSS.8.EE.A.2

Solve.

x² - 4 = 76

• No Real Number Solution

• x = ±4√5

• x = ±80

• x = ±5√4

Tags

CCSS.8.EE.A.2

x² -4 = 77

• 9

• -9

• No Real Solutions

• ±9

Tags

CCSS.8.EE.A.2

Solve for x.

x² = 36

• x = ± 6

• x = ± 18

• x = 6

• x = 18

Tags

CCSS.8.EE.A.2