FOILing (-x + 2)(2x - 1)
    F Take the product of the First terms (-x).(2x) = -2x2
    O Take the product of the Outer terms (-x).(-1) = x
    I Take the product of the Inner terms 2.2x = 4x
    L Take the product of the Last terms 2.(-1) = -2
    Then add them all up -2x2 + x + 4x - 2  =  -2x2 + 5x - 2

Enter this as   -2*x^2 + 5*x - 2


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