### Quadratic Equation

What is/are the factors of the equation y^{2} = 64?**[2013]**

(y + 8)

38

(y+8)(y-8)

(-8,8)

The value of x^{2}+5x = 12 - x^{2} are**[2007]**

3/2 and -4

3 and 4

2/3 and 4

4/3 and 2

If the sum of the roots of the quadratic equation is 6 and the product of the root is also 6, then the equation is**[2006]**

x^{2} - 6x + 6 = 0

x^{2} + 6x - 6 = 0

x^{2} - 6x - 6 = 0

x^{2} + 6x + 6 = 0

In the equation y = x^{2} + rx - 3, for what values of r will be y = 11 when x = 2?**[2006]**

5

4

3

2

The value of the expression 16x^{2} + 24x + 9 for x = -(3/4) is:**[2006]**

2

1

0

-1

What are the roots of x^{2} - 14x + 45 = 0 **[2005]**

9,5

-9, 5

9, -5

-9 -5

If one root of the equation 2x^{2} + 2x - k = 0, what is the value of k?**[2002]**

10

18

35

84

### Other Questions

The value of k for which equation

9x^{2} + 8xk + 16

Only 3

only -3

± 3

9

Which of the following is solution of quadratic equation

2x^{2} + x - 6 = 0

x = 2

x = -12

x = 3/2

x = -3

The solution of a quadratic equation x^{2} + 5x - 6 = 0

x = -1 , x = 6

x = 1 , x = -6

x = 1

x = 6

If one root of the equation x^{2} - 3x + a = 0 is 2, then

a = -2

a = 2

a = 0

a = -3

If x^{3} + 9x + 5 is divided by x, then the remainder is

9

0

-9

5

The quadratic equation whose roots are -2 and 4 are given by

x^{2} - 2x - 8 = 0

x^{2} - 2x + 8 = 0

x^{2} + 2x + 8 = 0

None of these

Roots of quadratic equations x^{2} - 3x, wiil be

3

0, -3

0 , 3

None of these

If the roots of a quadratic equation are 20 and -7, then find the equation?

x^{2} + 13x - 140 = 0

x^{2} - 13x + 140 = 0

x^{2} - 13x - 140 = 0

x^{2} + 13x + 140 = 0

The sum and the product of the roots of the quadratic equation x2 + 20x + 3 = 0 are?

10, 3

-10, 3

20, -3

-20, 3

If the roots of the equation 2x2 - 5x + b = 0 are in the ratio of 2:3, then find the value of b?

3

4

5

6

One root of the quadratic equation x2 - 12x + a = 0, is thrice the other. Find the value of a?

29

-27

28

27

If one root of equation 4x^{2}-2x+k-4=0 is reciprocal of other. The value of k is:

-8

8

-4

4