The domain of f(x) = (2x +5) to the square is (infinity, infinity)
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The domain of f(x) = (2x +5) to the square is (infinity, infinity)

[From: ] [author: ] [Date: 12-01-08] [Hit: ]
or, in interval notation, (-∞, ∞).......
just double checking

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All real numbers

Yes its the same, and how ironic, I am also picking up math after 3 years, practicing before I enter college in less than 2 weeks.

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Yes, that is a polynomial function. The domain of a polynomial function will always be all real numbers, or, in interval notation, (-∞, ∞).

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Domain: {xER}
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