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If x=9 is one root of the quadratic equa...

If x=9 is one root of the quadratic equation `x^(2)-11x+k=0`, then find the value of k.

Text Solution

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The correct Answer is:
k=18
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Knowledge Check

  • The real roots of the quadratic equation x^(2)-x-1=0 are ___.

    A
    `1,1`
    B
    `-1, 1`
    C
    `(1+sqrt(5))/(2), (1-sqrt(5))/(2)`
    D
    no real roots

  • If the difference between the roots of the equation x^(2)-13x+k=0 is 7 then the value of k is ___.

    A
    `15`
    B
    `30`
    C
    `-30`
    D
    `-13`

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