Solving Quadratic Equations with Square Roots

• A

• B

• C

• D

Solve using square roots:

10x² + 3 = -17

• x = 6.7 or x = -6.7

• x = 2.25 or x = -2.25

• x = -2 or x = 2

• No real solution

x²=25

• x = 5

• x = -5

• x = ±25

• x = ±5

(x-5)² = 25

• ±0

• ±10

• 10, 0

• -10, 0

Solve using square roots:

5x² + 6 = 186

• x = 1.3 or x = -1.3

• x = 6 or x = -6

• No real solutions

• x = 6

Solve using square roots 3(x - 2)² - 4 = -16

• 2 ± 2i

• 2 ± √2i

• 2 ± 4i

• -2 ± 2i

Solve using square roots.

• A

• B

• C

• D

Solve using square roots:

x² + 7 = 89

• x = 9.8

• No real solution

• x = 9.1

• x = 9.1 or x = -9.1

How many solutions are there?

• 0

• 1

• 2

• Cannot be determined

Which method of solving quadratics would you use to solve the following:

• Completing the Square

• ZPP

• Square Roots