30 increased by 3 times the square of a number

Discussion in 'Calculator Requests' started by math_celebrity, Sep 9, 2016.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    Let "a number" equal the arbitrary variable x.

    The square of that is x^2.

    3 times the square of that is 3x^2.

    Now, 30 increased by means we add 3x^2 to 30
    30 + 3x^2

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