Solving with Quadratics

x² = 16

• ± 4

• ± 8

• 4

• 8

Tags

CCSS.8.EE.A.2

x² + 4 = 68

• ± 8

• ± √8

• 8

• ± 64

Tags

CCSS.8.EE.A.2

3x² = 12

• ± 2

• 2

• ± √12

• ± 4

Tags

CCSS.8.EE.A.2

7x² + 1 = 8

• ± 1

• ± 7

• ± √7

• ± 8

Tags

CCSS.8.EE.A.2

The quadratic function y = -2x² + 4x + 6 is pictured. What are the solutions to the equation 7.5 = -2x² + 4x + 6?

• x = 0.5

• x = 1.5

• x = 1

• x = 8

• x = 6

What are the solutions to the quadratic equation?

• x = -4

• x = 1

• x = -1

• x = 2

• x = 4

Select the solutions to the equation

4x² + 11x + 7 = 0

• x = - 1.75

• x = 6

• x = - 1

• x = 1

What are the solutions for this quadratic equation?

• -4 and 0

• 4 and 0

• -2 and 4

• -2 and -4

(x - 2) ² = 9

• ± 3

• 5  or  -1

• -5  or  1

• ± 9

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:
5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solution

Tags

CCSS.HSA-REI.B.4B