Solve Using the Square Root Method

Solve by taking square roots:
5m² + 1 = 6

• m = 0

• m = 1 or -1

• m = √7

• m = 7/5 m = -7/5

• A
• B
• C
• D

3x² = 12

• ± 2

• 2

• ± √12

• ± 4

7x² + 1 = 8

• ± 1

• ± 7

• ± √7

• ± 8

• x = 3  or   x = -3

• no solutions

• x = 6 or x = -6

• x = 3

2x²= 30

• x= √5

• x= √30

• x= √15

• x= ±5

Solve using the square root method:

x² - 3 = 78

• x = -9, 9

• x = 9

• x = -9

• x = -8.66, 8.66

Solve by using the square root method:

(x - 2) ² = 49

• x = 9 or -5

• x = ± 9

• x = ± 5

• x = ± 7

Solve by using the square root method:

3x² = 12

• x = ± 2

• x = 2

• x = ± 3.46

• x = ± 4