and yes, the restrictions are -4, -2 and 1.
the original expression has such restrictions because if ever "x" becomes one of those values, one of the denominators will turn to 0 making the fraction undefined.
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and yes, the restrictions are -4, -2 and 1.
the original expression has such restrictions because if ever "x" becomes one of those values, one of the denominators will turn to 0 making the fraction undefined.