Solving Quadratic Equations by Taking Square Roots Word Problems

Solve by taking the square root:

4x² = 100

• x = ±10

• x = ±25

• x = ±5

• x = 5

Solve using square roots.

• ±81

• ±9

• ±3

• No real solution

Solve using square roots.
k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no solution

• 5, -5

• 2.23, -2.23

• 2.3

• 5

Solve using square roots.

• ±81

• ±9

• ±3

• No real solution

Solve using square roots.
5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solution

Solve using square roots.

• ± 1/4

• ± 9/36

• ± 1/2

• No real solution

Solve:
x² - 49 = 0

• x = -7, x = 7

• x = -7

• x = 7

• x = -7, x = 1