Squared Equations

x² = 16

• ± 4

• ± 8

• 4

• 8

x² = 121
What does x equal?

• 11²

• 11 and -11

• 20 and 11

• 12 and 1

x² = 64

• + 6 only

• ± 6

• ± 8

• + 8 only

x² = 36

• 6

• 18

• 6, -6

• -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

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

x² = 49

• 7

• 2401

• -2401

• -7

x² = 289

• 17

• -16

• -17

• 16