Home
Class 10
MATHS
If the roots of a quadratic equation ax^...

If the roots of a quadratic equation `ax^(2) + bx + c = 0` are real and equal then `b^(2)` =…

A

4ab

B

4ac

C

`ac/4`

D

`a^(2) c^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • QUADRATIC EQUATIONS

    VGS PUBLICATION-BRILLIANT|Exercise EXERCISE|270 Videos

  • QUADRATIC EQUATIONS

    VGS PUBLICATION-BRILLIANT|Exercise OBSERVATION BITS TO SOLVE VARIOUS BITS GIVEN IN THE PUBLIC EXAMINATION|30 Videos

  • PROGRESSIONS (MULTIPLE CHOICE QUESTION)

    VGS PUBLICATION-BRILLIANT|Exercise PROGRESSIONS (MULTIPLE CHOICE QUESTION)|20 Videos

  • QUADRATIC EQUATIONS (MULTIPLE CHOICE QUESTION)

    VGS PUBLICATION-BRILLIANT|Exercise QUADRATIC EQUATIONS (MULTIPLE CHOICE QUESTION)|20 Videos

Similar Questions

Explore conceptually related problems

The roots of a quadratic equation ax^(2) + bx + c = 0 "is"

The roots of a quadratic equation ax^2- bx + c = 0, a ne 0 are

The product of roots of quadratic equation ax^(2) + bx + c = 0 is

IF the roots of the equation ax ^2 +bx + c=0 are real and distinct , then

If the 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

If alpha, beta are the roots of the quadratic equation ax^(2) + bx + c = 0 then form the quadratic equation whose roots are palpha, pbeta where p is a real number.

Write the roots of quadratic equation ax^2+bx+c=0 when b^2-4ac>0 .

Show that the sum of roots of a quadratic equation ax^(2) + bx + c = 0 (a ne 0) is (-b)/(a) .

Show that the product of the roots of a quadratic equation ax^(2)+bx+c=0 (a ne 0) is (c )/(a) .