Roots in Calculator

• A
• B
• C
• D

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• B
• C
• D

• A
• B
• C
• D

• A
• B
• C
• D

• A
• B
• C
• D

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• B
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Find the solutions. (Solve for b.)

• -2, 4

• -8

• 8, -8

• 2, -4

Solve
2x² + 17x + 21 = 0

• x= ^-21/₂, -17

• x= ²/₃, 16

• x=-7, ^-3/₂

• x=15, -³/₇

Solve using square roots.

• ± 1/4

• ± 9/36

• ± 1/2

• No real solution

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

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solution