document.write( "Question 1130852: Calculus
\n" ); document.write( "limits h→0 f(x+h)+f(x)/h when f(x)= 4x^2-x
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Algebra.Com's Answer #747481 by Alan3354(69443)\"\" \"About 
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8x - 1 \n" ); document.write( "
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