Solving Quadratic Equations

Solve
16a² - 9 = 0

• a = ^-3/₄, ³/₄ 
• a = ^-4/₃, ⁴/₃ 
• a = ^-9/₁₆, ⁹/₁₆ 
• a = ^-16/₉, ¹⁶/₉ 

Tags

CCSS.HSA-REI.B.4B

Use the graph to determine the solutions.

• -1 and -3
• 1 and -3
• 1 and 3
• -1 and 3

x² = 49

• 7

• 2401

• -2401

• -7

Tags

CCSS.8.EE.A.2

x² = 289

• 17
• -16

• -17

• 16

Tags

CCSS.8.EE.A.2

Tags

CCSS.8.EE.A.2

Match the following quadratic equations with their answers.

• x = ±7

• x² = 36

• x = ±6

• x² = 49

• x = ±9

• x² = 64

• x = ±8

• x² = 9

• x = ±3

• x² = 81

Tags

CCSS.8.EE.A.2

Solve the equation (x + 3)² = 49.

• x = -7, 7
• x = 4, -10
• x = -4 +- √7
• x = 10, -4

Tags

CCSS.HSA-REI.B.4B

Solve     2x² - 50 = 0

• 25
• -5, 5
• -5i , 5i
• 25i

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

When do you use the plus or minus (±) symbol?

• After taking the square root of both sides
• After adding the square to both sides
• After taking half of b
• After setting the equation equal to zero

Tags

CCSS.HSA-REI.B.4B

x² = 289

• 17

• -16

• -17

• 16

Tags

CCSS.8.EE.A.2