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If x= 3 is solution of 3x^(2)+(K-1)x+9=...

If x= 3 is solution of `3x^(2)+(K-1)x+9=0`, find K.

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The correct Answer is:
`k= -11`.
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ZEN PUBLICATION-QUADRATIC EQUATIONS-ZEN ADDITIONAL QUESTIONS (VERY SHORT ANSWER (VSA) QUESTIONS)
  1. If a=0 in the quadratic equation ax^(2)+bx+2=0, which type of equation...

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  2. What is the nature of the roots of the quadratic equation if its discr...

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  3. Is (x+1)^(2)=x^(2)+4x+4 quadratic?

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  4. Write the quadratic formula to find the roots of ax^(2)+bx+c=0.

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  5. Is -sqrt(3) a root of the equation x^(2)+(sqrt(3)+1)x+sqrt(3)=0 ?

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  6. Find the positive root of sqrt(3x^(2)+6)=9.

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  7. What are the roots of the quadratic equation sqrt(3)x^(2)-2x-sqrt(3)=0...

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  8. If x= 3 is solution of 3x^(2)+(K-1)x+9=0, find K.

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  9. What is the value x+1/x for the quadratic equation x^(2)-2x+1=0?

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  10. Find the discriminant of the quadratic equation 3sqrt(3)x^(2)+10x+sqrt...

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  11. What is the nature of the roots of the quadratic equation 5x^(2)-2x-3=...

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  12. Which constant term is to be added to make the LHS of ax^(2)+bx=0 a pe...

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  13. If the discriminant of the equation 6x^(2)-bx+2=0 is equal to 1, find ...

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  14. If the discriminant of 3x^(2)+2x+a=0 is double the discriminant of x^(...

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  15. Find K for which equation 4x^(2)+4sqrt(3)x+K=0 has equal roots.

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  16. If the quadratic equation mx^(2)+2x+m=0 has two equal roots, find m?

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  17. If the product of two consecutive integers is 306, write its quadratic...

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  18. Write the quadratic equation which has 5 as the product of its two roo...

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  19. Find the value of the discriminant of the quadratic equation 2x^(2)-4x...

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  20. Write, (x+1)/2 = (1/x) in the standard from of a quadratic eqation.

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