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For what positive value of x the 9x^2-8...

For what positive value of x the `9x^2-81=0`.

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BEYOND PUBLICATION-QUADRATIC EQUATIONS-EXAMPLE
  1. Find the roots of 6x^2-x-2=0.

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  2. The roots of (7x-1)(2x+3)=0.

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  3. If the sum of squares of two consecutive positive even numbers is 100 ...

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  4. The discriminant of 5x^(2) - 3x - 2 = 0 is…

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  5. The nature of the roots of a quadratic equation 4x^(2) - 12x + 9 = 0 i...

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  6. The roots of the Q.E. (x -1/3)^(2) = 9

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  7. The roots of the quadratic equation (x^(2) - 8)/(x^(2) + 20) = 1/2 are...

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  8. The roots of 2x^(2) - x + 1/8 = 0 are…

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  9. If y(y+y) = 12 then y=?

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  10. Find the equations with roots 9 and 1.

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  11. If alpha,beta are the roots of x^2-yx+3=0 the find the value of alpha^...

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  12. If 1/(x-2)+2/(x-1)=6/x then find the value of x.

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  13. In right angle triangle triangle ABC AB = 4, AC= 5 then find the val...

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  14. If x^2-4x+3=1 then find the value of x.

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  15. The sum of a number and its recip- rocal is 5/2 then the number is

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  16. The roots of a quadratic equation (sqrt 2 x + 3) (5x - sqrt 3) = 0are…...

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  17. A piece of wire 8m in length is cut into two pieces and each piece is ...

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  18. For what positive value of x the 9x^2-81=0.

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  19. If alpha,beta are the roots of 32x^2+3x-7=0 then find the value of (al...

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  20. Form a quadratic equation from x^(3) - 4x^(2) - x + 1 = (x - 2)^(3) =

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