document.write( "Question 937708: Find the domain of the indicated function.
\n" ); document.write( "Express answers in both interval notation and inequality notation.\r
\n" ); document.write( "\n" ); document.write( "f(x) = 4 – 9x + 3x^2
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Algebra.Com's Answer #571120 by TimothyLamb(4379)\"\" \"About 
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the domain of:
\n" ); document.write( "f(x) = 4 – 9x + 3x^2
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\n" ); document.write( "is all real numbers:
\n" ); document.write( "[-infinity, +infinity]
\n" ); document.write( "x >= 0 AND x < 0
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