Solving Quadratics Quizizz

Solve by using square roots.

• ±81

• ±9

• ±3

• No real solution

Solve

6x² + 12 = -17x

• x = -4/3, x = -3/2

• x = 9, x = 8

• x = 4, x = 3

• x = -4, x = -3

Solve
x² + 2x - 24 = 0

• x = -6, x = 4
• x = 6, x = -4
• x = 12, x = -2
• x = 8, x = -3

Tags

CCSS.HSA-REI.B.4B

Solve

x² = -7x - 12

• x = -2, x = -10

• x = -3, x = -4

• x = -4, x = -5

• x = -4, x = -6

What are the zeros to the equation

x² - 2x = 8?

• x = 2 or x = -4

• x = 1 or x = -8

• x = 4 or x = -2

• x = 8 or x = -1

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• -4.9 and -0.1

• -8.54 and 8.54

• -0.45 and 3.55

• -6.77 and 1.77

Solve for x

x² - 3 = 78

• -9,9

• 9

• -9

• -√75, √75

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

The discriminant is

• aX²  + bX  +  c
• b - 4ac
• b² - 4ac
• b² + 4ac

Tags

CCSS.HSA-REI.B.4B

What is the discriminant of 6x² − 2x = 3

• 76

• 29

• 68

• none of these

Solve the quadratic

• A

• B

• C

• D