Solve Quadratic Equations ~Q3 Prep~

2d² = 8

• 4
• -2
• -4, 4
• -2, 2

Tags

CCSS.8.EE.A.2

Solve by taking square roots:

5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no real solution

Tags

CCSS.HSA-REI.B.4B

Use the quadratic formula to solve 2x² + 2x - 12.

• -2, 3

• 2, 3

• 2, -3

• -2, -3

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

Tags

CCSS.HSA-REI.B.4B

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

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:

x² - 5x - 2 = 4

• x = 6 or x = -1

• x = -6 or x = 1

• x = -6 or x = 5

• Cannot be factored

Tags

CCSS.HSA-REI.B.4B

• -3, 4
• 3, 4
• -4, -3
• -3

Tags

CCSS.HSA-REI.B.4B

Solve.
n² - 5 = -4

• n = ±√9
• n = ±3
• n = ±1
• No real solution

Tags

CCSS.8.EE.A.2

Solve the equation by factoring.

• x = {-5,-3}

• x = {5,-3}

• x = {-5,3}

• x = {5,3}

Tags

CCSS.HSA-REI.B.4B

Solve for x:

4x² + 4x = 0

• 1, 0

• -1, 0

• 4,0

• -4,0

Tags

CCSS.HSA-REI.B.4B