Home
Class 10
MATHS
If the roots of the quadratic equations ...

If the roots of the quadratic equations `x^(2) +4x +c=0 ` are equal then the value of c is:

A

` 3`

B

` 4`

C

`5 `

D

` 12`

Text Solution

Verified by Experts

The correct Answer is:
b
Promotional Banner

Topper's Solved these Questions

  • QUADRATIC EQUATIONS

    OSWAAL PUBLICATION|Exercise Topic -3 Nature of the Roots and Discriminants (VERY SHORT ANSWER TYPE QUESTIONS ) |5 Videos

  • QUADRATIC EQUATIONS

    OSWAAL PUBLICATION|Exercise Topic -3 Nature of the Roots and Discriminants (SHORT ANSWER TYPE QUESTIONS ) |16 Videos

  • QUADRATIC EQUATIONS

    OSWAAL PUBLICATION|Exercise TOPIC -2 Relation between Roots and its Coefficients and Formation of Equations( LONG ANSWER TYPE QUESTIONS-II) |3 Videos

  • PROBABILITY

    OSWAAL PUBLICATION|Exercise TEXTBOOK CORNER (EXERCISE 14.2)|4 Videos

  • REAL NUMBERS

    OSWAAL PUBLICATION|Exercise TEXTBOOK CORNER ( EXERCISE 8.4 )|12 Videos

Similar Questions

Explore conceptually related problems

If the roots of the quadratic equations mx^(2) =6x + 1 are equal , then the value of m is

The roots of the quadratic equations x^(2) - 5x -6=0 are

Find the roots of the quadratic equation x^(2)+7x+12=0

If the roots of equations x^(2) - mx+ 16=0 are equal then the value of m is:

If m and n are the roots of the quadratic equations x^(2)- 6x+ 2 =0 , then the value of (m+ n )^(2) is

The sum of the roots of the quadratic equations ax^(2) + bx + c=0 is

If sum of the roots of the quadratic equation ax^(2) + bx+c = 0 is equal to the sum of the squares of their reciprocals, then (a)/(c ) , ( b )/( a ) and ( c )/( b ) are in :

Find the sum of roots of quadratic equations ax^(2) +bx+ c=0

The sum of the roots of the quadratic equations 2x^(2) = 6x- 5 is:

If alpha, beta are the roots of the quadratic equation x^2 + bx - c = 0 , the equation whose roots are b and c , is