Solve using the Square Root

x² = 16

• ± 4
• ± 8
• 4
• 8

-5x² = -50

• ± 5
• ± 10
• ± √10
• -10

(x + 1) ² = 25

• ± 5
• 4  or  -6
• -4  or  6
• ± 4

Solve for x
x² - 3 = 78

• -9,9
• 9
• -9
• -√75, √75

(x - 2) ² = 49

• 9  or  -5
• ± 9
• ± 5
• ± 7

Solve by taking square roots:
5b² - 4 = 41

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

Solve
(x+3)²-5 = 9

• -3±√14
• 3±√14
• ±11
• ±5

3x² = 12

• ± 2
• 2
• ± √12
• ± 4

x² + 4 = 68

• ± 8
• ± √8
• 8
• ± 64

(x + 1) ² = 25

• ± 5
• 4  or  -6
• -4  or  6
• ± 4