Solving Quadratic Equations Using Inverse Operations

Choose the first step in solving the following equation.

-3y² - 12 = 14

• take square root on both sides

• add 12 to both sides

• subtract 12 from both sides

• divide -3 on both sides

Tags

CCSS.8.EE.A.2

x² = 16

• x=4 or x= -4

• x=8 or x=-8

• x=4

• x=8

Tags

CCSS.8.EE.A.2

x²=25

• x = 5

• x = -5

• x = ±25

• x = ±5

Tags

CCSS.8.EE.A.2

x²−10=19

• x = √29

• x = ±√29

• x = ±29

• x = ±3

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

Select the solutions to the equation

4x² + 11x + 7 = 0

• x = - 1.75

• x = 6

• x = - 1

• x = 1

What are the solutions to the quadratic equation?

• x = -4

• x = 1

• x = -1

• x = 2

• x = 4

x² + 4 = 68

• x=8 or x= -8

• x= √8 or x=-√8

• x=8

• x=64 or x=-64

Tags

CCSS.8.EE.A.2

Solve for x
x² - 3 = 78

• -9,9

• 9

• -9

• -√75, √75

Tags

CCSS.8.EE.A.2

2x²= 30

• x= √5

• x= √30

• x= ±√15

• x= ±5

Tags

CCSS.8.EE.A.2