Lesson 3 Part 2 Solve Equations using square roots

x² -4 = 77

• 9

• -9

• No Real Solutions

• ±9

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.A.1

Solve by taking the square root:

4x² = 100

• ±10

• ±25

• ±5

• 5

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.A.2

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.4

• x = 9 or x = -9

• no solutions

• x = 2 or x = -2

• x = 81 or x = -81

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.A.1

CCSS.HSA.REI.A.2

• No Solution

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.CED.A.1

Tags

CCSS.HSA.REI.B.4

x² = 16

• ± 4
• ± 8
• 4
• 8

Tags

CCSS.HSA.REI.B.4

x² + 4 = 68

• ± 8
• ± √8
• 8
• ± 64

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.CED.A.1

7x² + 1 = 8

• ± 1
• ± 7
• ± √7
• ± 8

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.CED.A.1

Solve using square roots.
5b² - 4 = 41

• b = 9, b = -9
• b = 3, b = -3
• b = 8, b = -8
• no solution

Tags

CCSS.HSA.REI.B.4