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If one root of x^2+kx +12 =0 may be ...

If one root of `x^2+kx +12 =0` may be the triple the other , then k=

A

`+-8`

B

`3`

C

`+- 5 sqrt(10)`

D

`2+- sqrt5`

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The correct Answer is:
A
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DIPTI PUBLICATION ( AP EAMET)-QUADRATIC EXPRESSIONS-EXERCISE 1A (QUADRATIC EQUATIONS)
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  12. IF the sum of the roots of the equation x^2+px +q=0 is 3 times ...

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  13. If the roots of the equation ax^2+bx +c=0 be the square roots of...

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  14. IF the ratio of the roots of x^2+bx +c=0 and x^2 + qx+r=0 are the...

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