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Which of the following quadratic equati...

Which of the following quadratic equations has roots 3,5 ?

A

`x^(2)-15x+8=0`

B

`x^(2)-8x+15=0`

C

`x^(2)+3x+5=0`

D

`x^(2)+8x-15=0`

Text Solution

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The correct Answer is:
B
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CHETAN PUBLICATION-QUADRATIC EQUATIONS-PROBLEM SET 2
  1. The roots of x^(2)+kx+k=0 are real and equal, find k.

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  2. Which of the following is the value of the discriminant for sqrt(2)x^...

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  3. Which of the following quadratic equations has roots 3,5 ?

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  4. Out of the following equations, find the equation having the sum of it...

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  5. sqrt(5)m^(2)-sqrt(5)m+sqrt(5)=0 which of the following statement is tr...

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  6. One of the roots of equation x^(2)+mx-5=0 is 2 find m.

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  7. The sum of roots (alpha+beta) = ……………… A)(-b)/a B)b/a C)(-c)/a D)c...

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  8. The roots of a quadratic equation y^(2)-16y+63=0 are ………….

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  9. If the roots of a quadratic equations are real and equal, then Delta m...

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  10. What is the value of k, If one root of the quadratic equation k x^2 - ...

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  11. If one root of quadratic equations is 1-sqrt(3) then the other root is...

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  12. If the roots of ax^(2)+bx+c=0 are real and equal then ………….. A)b^(2)-...

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  13. The value of discriminant of the equation x^(2)+x+1=0 is …………

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  14. In a quadratic equation with roots alpha and beta where alpha+beta=-4 ...

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  15. The standard form of quadratic equation x-5/x=3x-7 is ………….

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  16. What is the nature of roots of quadratic equations 9x^(2)-12x+4=0?

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  17. Three times the square of natural number is 363 is written in the math...

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  18. Which of the following is not a quadratic equatin?

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  19. The product of the roots (alpha times beta) = …………..

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  20. alpha^(3)+beta^(3)=……………

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