Solve Quadratic by Square Root

Solve using square roots.

k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no real solution

• ±81
• ±9
• ±3
• No real solution

Solve the equation
4x² - 25 = 0

• 5/2, -5/2

• 5/2, 5/2

• -5/2, -5/2

• -5/2, 5/2

Solve for h.
(h - 2)² = 9

• h = 5, -1

• h = 5, -5

• h = 5

• h = -1

x² = 16

• ± 4

• ± 8

• 4

• 8

x² + 4 = 68

• ± 8

• ± √8

• 8

• ± 64

7x² + 1 = 8

• ± 1

• ± 7

• ± √7

• ± 8

(x - 2) ² = 9

• ± 3

• 5  or  -1

• -5  or  1

• ± 9

• {12,-12}

• No Solution

• {16,-16}

• {34.06,-34.06}

Solve for x.

x² = 36

• x = ± 6

• x = ± 18

• x = 6

• x = 18