document.write( "Question 86178: f(x)= 2x^2-x+4 (f(x+h)-f(x))/h
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Algebra.Com's Answer #62277 by stanbon(75887)\"\" \"About 
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f(x)= 2x^2-x+4 (f(x+h)-f(x))/h\r
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\n" ); document.write( "f(x+h) = 2(x+h)^2-(x+h)+4
\n" ); document.write( "f(x+h) = 2x^2+4hx+2h^2-x-h+4
\n" ); document.write( "f(x+h) = 2x^2+4hx-x+2h^2-h+4
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\n" ); document.write( "f(x)= 2x^2-x+4
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\n" ); document.write( "Subtract f(x) from f(x+h) to get:
\n" ); document.write( "= 4hx+2h^2-h
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\n" ); document.write( "Divide by h to get:
\n" ); document.write( "[f(x+h)-f(x)]/h = 4x+2h-1
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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