document.write( "Question 1202652: Given f(x) = x^2 +3, find and simplify the difference quotient ([f(x+h) - f(x)])/h.\r
\n" ); document.write( "\n" ); document.write( "What is the best way to go about solving this? I know I need to substitute the equations together like (x+h)^2 + 3 - (x^2=3)\r
\n" ); document.write( "\n" ); document.write( "I don't know if that substitution is correct. Any help with this problem would be greatly appreciated.
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Algebra.Com's Answer #837602 by Alan3354(69443)\"\" \"About 
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Given f(x) = x^2 +3, find and simplify the difference quotient ([f(x+h) - f(x)])/h.
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\n" ); document.write( "f(x) = x^2 +3
\n" ); document.write( "f(x+h) = (x+h)^2 + 3 = x^2 + 2hx + h^2 + 3
\n" ); document.write( "Subtract f(x)
\n" ); document.write( "---> x^2 + 2hx + h^2 + 3 - (x^2+3) = 2hx + h^2
\n" ); document.write( "Divide by h ---> 2x + h
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