Radical Equations with Extraneous Solutions

Name the extraneous solution(s) for this equation.

• 3

• -3 and -4

• 4

• -4

Solve:

• 1

• 43

• 8

• 55

Solve the radical equation

• 25

• 50

• 125

• 5

Solve

• -5

• -4

• 4

• -5, 4

Solve:

• -4

• 0, -4

• 4

• 0, 4

• -6

• 6

• -5

• 5

• x = 0

  5 is extraneous

• x = 5

  0 is extraneous

• x = -2

  3 is extraneous

• x = 3

  -2 is extraneous

• x = 1

  9 is extraneous

• x = 3

  -2 is extraneous

• x = 9

  1 is extraneous

• x = -2

  3 is extraneous

• x = 7

  -8 is extraneous

• x = -8

  7 is extraneous

• x = 4

  14 is extraneous

• no solution

Solve for r

• 5

• - 5, 4

• - 5

• 5, 4