Solving Quadratics with square roots

x² = 16

• ± 4
• ± 8
• 4
• 8

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.A.1

3x² = 12

• ± 2
• 2
• ± √12
• ± 4

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.CED.A.1

-5x² = -50

• ± 5
• ± 10
• ± √10
• -10

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.CED.A.1

x² + 4 = 68

• ± 8
• ± √8
• 8
• ± 64

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.A.1

7x² + 1 = 8

• ± 1
• ± 7
• ± √7
• ± 8

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.CED.A.1

Solve by taking square roots:
k² - 6 = 43

• k = √37
• k = 37 or - 37
• k = 7, k = -7
• no solution

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.A.1

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 solution

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.2

Solve using square roots.

• ± 1/4
• ± 9/36
• ± 1/2
• No real solution

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.A.2

Write the question and show all work.4x²=100

• 25
• ±25
• 5
• ±5

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3

• a = 4, b = -8, c = 3
• a = 4, b =-8, c =-3
• a = 4, b = 8, c = 3
• a = 4, b = 8, c = -3

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.CED.A.1