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If alpha and beta are the zeros of x^(2...

If` alpha and beta` are the zeros of ` x^(2) + 5x + 8` then the value of `(alpha+beta)` is

A

5

B

8

C

`-5`

D

`-8`

Text Solution

Verified by Experts

The correct Answer is:
C
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OSWAL PUBLICATION-QUADRATIC EQUATIONS-Multiple Choice Question
  1. The roots of the equation x^2 - x - 6 are:

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  2. The quadratic equation whose roots are 3 and -3 is .

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  3. If alpha and beta are the zeros of x^(2) + 5x + 8 then the value of (...

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  4. The discriminant of the quadratic equation 3x^(2) - 4x - 2 = 0 is

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  5. If ax^(2)+bx+c=0 has equal roots, find the value of c.

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  6. If one root of the equation 2x^2 + 3x + c = 0 is 0.5, then what is the...

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  7. The equation whose roots are twice the roots of the equationx ^(2) - 2...

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  8. The difference in the roots of the equation 2x^2 - 11x + 5 = 0 is :

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  9. If alpha and beta are the roots of the equation x^(2) + px + q =0, t...

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  10. In the quadratic equation x^2 + ax + b=0, a and b can take any value f...

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  11. For which value of k does the pair of equation x^2 - y^2 = 0 and (x – ...

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  12. If the root of the equation Ax^2 - Bx + C = 0 are -1 and 1, then which...

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  13. If the roots of the equation (a^2 - bc)x^2 + 2(b^2 - ac)x + (c^2 - ab)...

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  14. If one root of (a ^(2) – 5a + 3) x ^(2) + ( 3a -1) x + 2 =0 is tw...

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  15. If 3 is a root of the equation kx^2 - kx - 3 = 0, then the value of k ...

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  16. If the zeroes of the quadratic polynomial x^(2) +(a+1)x+b are 2 and -3...

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  17. Solve sqrt(2x+9)+x=13.

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  18. The nature of roots of the equation 2x^2 + sqrt(5x) - 1= 0 is ...........

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  19. Solve the equation 2x^2-5x+3=0 by the method of completing square.

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  20. Which of the following is not a quadratic equation?

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