Factoring, Solving, and Square root method practice

x² = 16

• ± 4
• ± 8
• 4
• 8

3x² = 12

• ± 2
• 2
• ± √12
• ± 4

-5x² = -50

• ± 5
• ± 10
• ± √10
• -10

x² + 4 = 68

• ± 8
• ± √8
• 8
• ± 64

7x² + 1 = 8

• ± 1
• ± 7
• ± √7
• ± 8

(x + 1) ² = 25

• ± 5
• 4  or  -6
• -4  or  6
• ± 4

(x - 2) ² = 9

• ± 3
• 5  or  -1
• -5  or  1
• ± 9

3x² = 30

• ± 10
• ± √10
• ± 15
• 30

x² + 1 = 9

• ± √8
• ± 4
• ± 8
• ± 3

Solve

x² + 2x - 20 = 4

• x = -6, x = 4

• x = 6, x = -4

• x = 12, x = -2

• x = 8, x = -3