Solving Quadratics with Radical

Simplify the following radical: √32

• 3√2
• 4√8
• 16√2
• 4√2

Solve for x

3x² - 27 = 0

• x = 4.9, -4.9

• x = 9, -9

• x = 3, -3

• No solution

Solve for x

x² = 64

• x = 8, -8

• x = 32, -32

• x = 4, -4

• No real solution

Solve using square roots.

• ±81
• ±9
• ±3
• 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

7x² + 1 = 8

• ± 1
• ± 7
• ± √7
• ± 8

Solve:

x² - 49 = 0

• x = -7 or x = 7

• x = -7

• x = 7

• x = -7 or x = 1

• 8

• -8

• 64

• -64

• 10

• 6

• -6

• 44

• -36

• 0

-5x² = -500

• no solution

• +25, -25

• +100, -100

• +10, -10