Solve Quadratic by Square Root

2x²= 30

• x= √5

• x= √30

• x= √15

• x= ±5

• x = 3, -3

• x = 3i, -3i

• x = -7, 7

• No Soluition

Solve using square roots.

• ±√9

• ±3

• ±1

• No real solution

Solve by taking square roots:

k² - 6 = -50

• k = ±4i√11

• k = ±4√11

• k = ±2i√11

• k = ±2√11

Solve by taking square roots.

2x² - 8 =100

• x = ±√54

• x = ±3√6

• x = ± 9√6

• x = ±2√27

Solve by taking square roots:

-3b² - 4 = 26

• k = ±2i√30

• k = ±i√30

• k = ±2i√10

• k = ±i√10

Solve by taking square roots.

x² = -121

• ± 11

• ± 11i

• ± 12

• 11i

Solve.

5b² - 4 = 41

• b = ±9

• b = ±3

• b = ±8

• No Real Number Solution

Solve for x.

(x - 7)² + 4 = 40

• x = -1, -13

• x = 1, 7

• x = -1, -7

• x = 1, 13

• x = -7, -13

Solve : x² = 16

• ± 4

• ± 8

• 4

• 8