Question

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

Answer 1

Answer:

1. 625
2. 9
3. 18
4. ??
5. 0.5

Step-by-step explanation:

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