Solving Quadratic Equations Using Square Roots

Solve by taking the square root:
(x + 6)² = 1

• -5, -7
• 5, 7
• 5, -7
• -5, 7

Tags

CCSS.HSA-REI.B.4B

Solve by taking the square root:
2(x - 3)² - 14 = 18

• 1, 7
• -1, 7
• -1, -7
• 1, -7

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

Solve x²− 4 = 0

•  2 and -2
• 4 and -4
• 16 and -16
• 8 and -8

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:
5m² + 1 = 6

• m = 0
• m = 1 or -1
• m = √7
• m = 7/5 m = -7/5

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 solutionb

Tags

CCSS.HSA-REI.B.4B

Solve for x: 
(x+6)²=49

• x=7,12
• x=±7
• x=1,-13
• x=43,-55

Tags

CCSS.8.EE.A.2

3x² - 1 = 14

• 5
• -√5
• -√5, √5
• √5

Tags

CCSS.8.EE.A.2

-3x² = 99

• √33
• √33, -√33
• No Real Solutions
• -√33

Tags

CCSS.8.EE.A.2

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

• A
• B
• C
• D

Tags

CCSS.8.EE.A.2