Positive and Negative Square Roots

Solve using square roots.
k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no solution

Tags

CCSS.8.EE.A.2

Solve using square roots.
5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solution

Tags

CCSS.8.EE.A.2

Solve using square roots.
4m² - 100 = 0

• m=25, -25

• m=96

• m=5, -5

• m=-96

Tags

CCSS.8.EE.A.2

What is the positive and negative square root of 256?

• 16 and -16

• 17 and -17

• 128 and -128

• 512 and -512

Tags

CCSS.8.EE.A.2

• √1
• 1
• -1
• Not possible

What is the square root of -144?

• + 12

• 12

• -12

• not real

What's the square root for this number:

• -4

• -8

• 8/-8

• None of the above

Give all possible answers

• 20 / -20

• 40 / -40

• 18 / -18

• None of the above

Simplify √-121

• -11

• -121

• 11i

• error

Solve using the Quadratic Formula.

• A

• B

• C

• D

Tags

CCSS.HSA-REI.B.4B