D'omain of the function |x+3|÷x+3
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The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined. The range is the set of all valid y values.
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x3 is a polynomial, which means its domain is R , and in our case, its range is also R because the only root that x3 has, 0, is not a double root (technically it's a triple root, and because 3 is odd, the function switches sign).
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