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" Let "f(x)" be a quadratic polynomial such that "f(-1)+f(2)=0" .If one of the roots of "f(x)=0" is "3" ,then its other root lies in "

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Let f(x) be a quadratic expression such that f(-1)+f(2)=0 . If one root of f(x)=0 is 3 , then the other root of f(x)=0 lies in (A) (-oo,-3) (B) (-3,oo) (C) (0,5) (D) (5,oo)

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Knowledge Check

  • Let f(x) be a quadratic expression such that f(-1)+f(2)=0 . If one root of f(x)=0 is 3 , then the other root of f(x)=0 lies in (A) (-oo,-3) (B) (-3,oo) (C) (0,5) (D) (5,oo)

    A
    `(-oo,-3)`
    B
    `(-3,oo)`
    C
    `(0,5)`
    D
    `(5,oo)`

  • Let f(x) be a quadratic polynomial with f(2)=-2 . Then the coefficient of x in f(x) is-

    A
    1
    B
    2
    C
    3
    D
    4

  • If f(x) be a quadratic polynomial such that f(x)=0 has a root 3 and f(2)+f(-1)=0 then other root lies in

    A
    `(-1,0)`
    B
    `(0,1)`
    C
    `(-2,1)`
    D
    `(1,2)

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