Solve Quadratic by Square Root

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 for x

3x² - 27 = 0

• x = 4.9, -4.9

• x = 9, -9

• x = 3, -3

• No solution

Solve using square roots.
k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no solution

Solve using square roots.

• A

• B

• C

• D

• A
• B
• C
• D

Solve using square roots.

• ±√9

• ±3

• ±1

• No real solution

• {6.78,-6.78}

• {8,-8}

• {7,-7}

• No Solution

x²−10=19

• x = √29

• x = ±2√9

• x = ±29

• x = ±5√19

Solve using square roots.

• ± 1/4

• ± 9/36

• ± 1/2

• No real solution