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29 March, 06:14

which values must be excluded from the domain of the variable in the expression x²-49/x x=8, x=7, x=0 or x=-7

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  1. 29 March, 06:52
    0
    x = 0

    Step-by-step explanation:

    Since we cannot divide by 0, the value of x which results in a denominator that is 0 is a value excluded from the domain;

    This value can be found by setting the denominator equal to 0;

    In this case, it is very simple as the denominator expression is simply "x", so the exluded value is: x = 0.
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