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Mth – LINEAR EQUATIONS AND INEQUALITIES
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1
What is the solution set of √(x + 5) = 2?
A
{-1}
B
{9}
C
{-1, 9}
D
No solution
2
Solve for x: 2√x = 10
A
5
B
25
C
20
D
100
3
Which equation has no real solution?
A
|x| = 0
B
|x| = 1
C
|x| = -1
D
|x - 2| = 3
4
Which equation has solution set {3, -3}?
A
√x = 3
B
|x| = 3
C
x² = 9
D
Both B and C
5
Solve: √(3x) = 6
A
2
B
12
C
18
D
36
6
Solve: 5√x = 20
A
4
B
16
C
25
D
100
7
Solve for x: √(x + 6) = 4
A
10
B
2
C
16
D
4
8
Solve for x: √x = 5
A
5
B
25
C
√5
D
10
9
Which equation has solution x = 3?
A
√(x+1) = 2
B
|x - 3| = 1
C
√(2x) = 6
D
|x| = 3
10
Solve: |3x| = 15
A
5 only
B
-5 only
C
5 and -5
D
15 and -15
11
Solve: |x - 5| = 3
A
8 only
B
2 only
C
8 and 2
D
5 and 3
12
Solve: |2x - 1| = 5
A
3 only
B
-2 only
C
3 and -2
D
2 and -3
13
Solve: |4x| = 20
A
5 only
B
-5 only
C
5 and -5
D
20 and -20
14
Solve for x: √(x²) = 5
A
5 only
B
-5 only
C
5 and -5
D
25
15
Which of the following is true about √(x) = -2?
A
x = 4
B
x = -4
C
No real solution
D
x = 2
16
Solve: |x + 1| = |x - 1|
A
0
B
1
C
-1
D
No solution
17
Which equation is equivalent to √x = 7?
A
x = 49
B
x = 14
C
x = √7
D
x = 7
18
What is the solution of √(2x - 1) = 3?
A
5
B
4
C
6
D
8
19
Solve: |3x + 2| = 8
A
2 only
B
-10/3 only
C
2 and -10/3
D
10/3 and -2
20
Solve: 2|x| + 3 = 11
A
4 only
B
-4 only
C
4 and -4
D
8 and -8
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