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One of the roots of quadratic equation 2...

One of the roots of quadratic equation `2x^(2)+kx-2=0` is -2, find k.

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The correct Answer is:
k=3
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UNIQUE PUBLICATION-QUADRATIC EQUATIONS -PROBLEM SET
  1. Find the value of discriminant for each of the following equations. ...

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  2. Find the value of discriminant for sqrt(5) x^2 - x- sqrt(5) =0

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  3. One of the roots of quadratic equation 2x^(2)+kx-2=0 is -2, find k.

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  4. Two roots of quadratic equations are given, frame the equation. 10 a...

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  5. Two roots of quadratic equations are given, frame the equation. 1-3s...

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  6. Two roots of quadratic equations are given, frame the equation. 0 an...

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  7. Determine the nature of roots for quadratic equation 3x^2-5x+7=0

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  8. sqrt3 x^2 - 2sqrt2 x - 2 sqrt3 = 0

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  9. Determine the nature of roots for each of the quadratic equations. m...

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  10. Solve the following quadratic equations : 1/(x+5)=1/x^(2)

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  11. Solve the following quadratic equations: x^(2)-(3x)/(10)-1/(10)=0

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  12. Solve the following quadratic equations: (2x+3)^(2)=25

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  13. Solve the following quadratic equations : m^(2)+5m+5=0

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  14. Solve the following quadratic equations : 5m^(2)+2m+1=0

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  15. Solve the following quadratic equations : x^(3)-4x-3=0

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  16. Find m, if the quadratic equation (m-12)x^(2)+2(m-12)x+2=0 has real an...

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  17. The sum of two roots of a quadratic equation is 5 and the sum of their...

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  18. Find quadratic equation such that its roots are square of sum of the r...

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  19. Mukund possesses RS 50 more than what Sagar possesses. The product of ...

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