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Which of the following is a quadratic eq...

Which of the following is a quadratic equation?

A

`(5)/(x)-3=x^(2)`

B

`x(x+5)=2`

C

n-1=2n

D

`(1)/(x^(2))(x+2)=x`

Text Solution

Verified by Experts

The correct Answer is:
`x(x+5)=2;`
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Knowledge Check

  • Which of the following is quadratic equation ?

    A
    `x^(3)-2x^(2)-sqrt(5)-x=0`
    B
    `3x^(2)-5x+9=x^(2)-7x+3`
    C
    `((x+1)/x)^(2)=3((x+1)/(x+4))`
    D
    `x^(3)+x+36`

  • Which of the following is a quadratic eqaution ?

    A
    `6x^(2) = 2 -x^(3)`
    B
    `x^(2) ((1)/(x) -2) = (7)/(2)`
    C
    `(3)/(x) - 3= 4x^(2)`
    D
    `5x+7= 3 x `

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    Which of the following is not a quadratic equation?

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