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If one root of the quadratic equation 2x...

If one root of the quadratic equation `2x^(2)+kx-2=0` is -2, find the value of k.

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The correct Answer is:
k=3
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TARGET PUBLICATION-QUADRATIC EQUATIONS-probelm set - 2
  1. Find the value of discriminant for each of the following equations. ...

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  2. Find the value of discriminant for each of the following equations. ...

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  3. If one root of the quadratic equation 2x^(2)+kx-2=0 is -2, find the va...

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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 each of the quadratic equations. 3...

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  8. Determine the nature of roots for each of the quadratic equations. s...

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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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  20. The difference between squares of two numbers is 120. The square of sm...

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