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Which of the following quadratle. Equati...

Which of the following quadratle. Equations the roots are equal?

A

`x^2 -5 = 0`

B

`x^2-10x+25 = 0`

C

`x^2+5x+6=0`

D

`x^2 - 1 = 0

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VGS PUBLICATION-BRILLIANT-QUADRATIC EQUATIONS-EXERCISE
  1. Which of the following is a quadratic equation?

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  2. Observe the following graphs. Which of them are the graphs of quadrati...

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  3. Which of the following quadratle. Equations the roots are equal?

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  4. The quadratic polynomial having 1/3 and 1/2 as its zeroes, is…..

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  5. If x^(2) - px + q = 0 (p,q in R and p ne 0, q ne 0) has distinct real ...

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  6. In a quadratic equation ax^(2) + bx + c = 0 "if" b^(2) - 4ac gt 0 then...

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  7. If a number is 132 smaller than its square, then the number is

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  8. If both roots are common to the Quadratic equations x^2-4 = 0 and x^2 ...

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  9. The sum of the roots of 6x^2 = 1 is

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  10. If the sum of a number and its reciprocal is 17/4, then that number is...

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  11. The roots of a quadratic equation ax^2- bx + c = 0, a ne 0 are

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  12. One of the roots of the Q.E. 6x^(2) - x - 2 = 0 is

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  13. If the sum of the squares of two consecutive odd numbers is 74, then t...

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  14. The roots of the equation 4x^(2) + 4 sqrt3x + 3 = 0 are

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  15. The sum of a number and its reciprocal is 50/7 ,then the number is

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  16. The roots of the equation 3x^(2) - 2 sqrt 6 x + 2 = 0 are

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  17. If x^(2) - 2x + 1 = 0 "then" x + 1/x =

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  18. The roots of the Q.E. sqrt 3 x^(2) -2x - sqrt 3 = 0 "are"

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  19. One solution of the Q.E. 2x^(2) - 5x - 3 = 0 is

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  20. If 5x^(2) - kx + 11 = 0 has a root x = 3, then k =

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