1. 2 + √c = 27 625 5 841 12.5 5.4 2. solve √x = 3 81 3 1.7 27 9 3. √(x-2) = 4 14 0 18 4 16 4. solve 1.8 2 21.6 216 18 5. √(2x) = 1 0.5 1.4 0.25 4 2

Get the surd by itself, then square and solve the resulting linear equation.

1. Subtract 2, then square

... √c = 25

... c = 25² = 625

2. √x = 3

... x = 3² = 9

3. √(x-2) = 4

... x -2 = 4²

... x = 16 +2 = 18 . . . . add 2

5. √(2x) = 1

... 2x = 1²

... x = 1/2 . . . . . . . divide by the coefficient of x

Mechanical

Step-by-step explanation: