See asked for me if in the graphic 2 equations didn't touch each other, it does means that for the 2 euqtions doesn't have one solution, so the person present you a problem without solution hadn't any X that would have an validy Y, so the X axys we assume values and put in the equations and for some X would not have a Y validy type an 0 in the denominator, or X negatives for a squarred root.
Also have the equations type of 2nd grade that had the apice or the lowest in some cases the two graphics would not touches, what does means that hadn't a validy solution for the 2 equations they had solution but not calculate in reason of each other.
Rute Bezerra de Menezes Gondim
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