Solve Quadratic by Square Root

Solve by taking square roots:

-3b² - 4 = 26

• k = ±2i√30

• k = ±i√30

• k = ±2i√10

• k = ±i√10

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots.

x² = -121

• ± 11

• ± 11i

• ± 12

• 11i

Tags

CCSS.HSA-REI.B.4B

Solve.

5b² - 4 = 41

• b = ±9

• b = ±3

• b = ±8

• No Real Number Solution

Tags

CCSS.8.EE.A.2

Solve by taking square roots:

3 - 9r² = 12

• ± 9i

• ± 1

• ± 1

• ± i

Tags

CCSS.HSA-REI.B.4B

5x² - 7 = 173

• x = 36

• x = 6

• x = 36 or x = -36

• x = 6 or x = -6

Tags

CCSS.8.EE.A.2

Solve by taking the square root:

x² = 49

• -7

• 7

• 49

• ±7

Tags

CCSS.HSA-REI.B.4B

x² -4 = 77

• 9

• -9

• No Real Solutions

• ±9

Tags

CCSS.8.EE.A.2

Solve by taking the square root:

4x² = 100

• ±10

• ±25

• ±5

• 5

Tags

CCSS.8.EE.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.4B

Solve for m.
4m² + 10 = 38

• m = 7, -7

• m = 7

• m = √7

• m = √7, -√7

Tags

CCSS.8.EE.A.2