• Answer of this question

    From where -1 is come in 2nd que.
    Davneet Singh's image
    Davneet Singh

    Hello Rohit

     

    To use factor theorem, we put

    Divisor = 0

    i.e. x + 1 = 0

    x = -1

     

    So, thats where -1 comes from. Please check the video at the bottom

    Written on April 19, 2018, 8:07 p.m.

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