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Determine whether x=-2 is a root of the ...

Determine whether `x=-2` is a root of the quadratic equation `2x^2-7x+6=0`

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The correct Answer is:
`28 ne 0`
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BAL BHARTI-QUADRATIC EQUATIONS-Problem Set - 2
  1. Determine whether x=-2 is a root of the quadratic equation 2x^2-7x+6=0

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  2. Which of the following equation is quadratic? (i) x^2+2x+11=0.

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  3. Which of the following equation is quadratic? (ii) x^2-2x+5=x^2.

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  4. Which of the following equation is quadratic? (iii) (x+2)^2=2x^2

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  5. Find the value of discriminat for each of the following equations. (...

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  6. Find the value of discriminat for each of the following equations. (...

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  7. Find the value of discriminat for each of the following equations. (...

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  8. One of the roots of quadratic equation 2x^2+kx-2=0 is -2. Find k.

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

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  10. Two roots of quadratic equations are given: frame the equation. (ii)...

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  11. Two roots of quadratic equations are given: frame the equation. (iii...

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  12. Determine the nature of roots for each of the quadratic equation. (i...

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  13. Determine the nature of roots for each of the quadratic equation. (i...

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  14. Determine the nature of roots for each of the quadratic equation. (i...

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

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

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  17. Solve the following quadratic equations. (iii) (2x+3)^2=25

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  18. Solve the following quadratic equations. (iv) m^2+5m+5=0

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

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  20. Determine the nature of roots of the following quadratic equations. ...

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  21. Find m if (m-12)x^2+2(m-12)x+2=0 has real and equal roots.

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