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Quadratic Equations
Question 1
What are the roots of the quadratic equation[Tex] ( x^2 - 6x + 9 = 0 )[/Tex]?
- A
( x = 3 ) and ( x = -3 )
- B
( x = 3 ) and ( x = 3 )
- C
( x = -3 ) and ( x = -3 )
- D
( x = 0 ) and ( x = 3)
Question 2
What is discriminant of the equation: x2 - 6x + 9 =
- A
0
- B
36
- C
12
- D
18
Question 3
Find the roots of the equation x2 - 5x + 6 = 0
- A
2,3
- B
-2,-3
- C
1,6
- D
5,6
Question 4
Which equation has imaginary roots?
- A
x2 + 4x + 5 = 0
- B
x2 - 3x + 2 = 0
- C
x2 - 6x + 9 = 0
- D
x2 - x + 6 = 0
Question 5
If one of root of equation x2 + kx + 6 = 0
- A
5
- B
-5
- C
3
- D
-3
Question 6
If x = 2 and x= 3 are roots of quadratic equation , what is the equation ?
- A
x2 + x - 6 = 0
- B
x2 + x + 6 = 0
- C
x2 - x + 6 = 0
- D
x2 - x - 6 = 0
Question 7
What is sum and product of roots of x2 - 7x + 12 = 0
- A
Sum = 7 Product = 12
- B
Sum =- 7 Product = - 12
- C
Sum = 12 Product = 7
- D
Sum = -12 Product = - 7
Question 8
If the discriminant D = 0, what types of root does quadratic equation have ?
- A
Real and Unequal
- B
Imaginary
- C
Real and equal
- D
None of these
Question 9
The roots of the equation x2+px+q=0 are in the ratio 2:3. What is the value of p2/q ?
- A
25
- B
36
- C
49
- D
30
Question 10
What is sum of roots of x2 - 4x + 6 = 0 ?
- A
4
- B
-4
- C
6
- D
-6
There are 10 questions to complete.