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For what value of k, (3)/(5) is a root o...

For what value of k, `(3)/(5)` is a root of the quadratic equation `4x^(2)+kx-3=0`?

A

`2(2)/(3)`

B

`3(3)/(5)`

C

`1(3)/(5)`

D

`3(2)/(5)`

Text Solution

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The correct Answer is:
b
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CALCUTTA BOOK HOUSE-QUADRATIC EQUATION IN ONE VARIABLE-EXERCISE-1.2
  1. For what value of k, (3)/(5) is a root of the quadratic equation 4x^(2...

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  2. For what value of k(-a) is a root of the quadratic equation 2x^(2)+3ax...

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  3. One root of the quadratic equation x^(2)+(2-sqrt5)x-2sqrt5=0 is

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  4. One root of the equation x+(1)/(x)=-2 is

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  5. One root of the quadratic equation x^(2)+(sqrt5-sqrt3)x-sqrt15=0" is "...

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  6. (-1) is a root of the equation sqrtx+(1)/(sqrtx)=2.

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  7. The quadratic equation in one variable x^(2)+1=0 have no roots.

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  8. The roots of the quadratic equation x^(2)+a=0 are .

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  9. The roots of the quadratic equation x^(2)-2x+1=0 are and .

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  10. Solve : sqrtx+(1)/(sqrtx)=2.

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  11. Determine for value of a if sqrt2 is a root of the quadratic equation ...

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  12. Prove that p and q are two roots of the quadratic x^(2)-(p+q)x+pq=0.

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  13. Solve : x+(k)/(x)=sqrt2.

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  14. If (2)/(5)and-5 be two roots of the quadratic equation ax^(2)-5x+b=0, ...

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  15. If sqrt2and-1 be two roots of the quadratic equation sqrt2ax^(2)+bx+1=...

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  16. Solve the equations : x^(2)+2bx-b^(2)=a^(2)-b(b-2x)

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  17. Solve the equations : (b-ax)/(bx-a)=(d-cx)/(dx-c)

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  18. Solve the equations : (1)/(a-b){a^(2)(x-b)-b^(2)(x-a)}=x^(2)

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  19. Solve the equations : (x-3)/(x+3)-(x+3)/(x-3)+6(6)/(7)=0

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  20. Solve the equation abs(x-abs(4-x))-2x=4

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