document.write( "Question 388286: Find the minimum of function f(x) = (x+1)^3 - (x-1)^3
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Algebra.Com's Answer #274591 by Alan3354(69443) $\"\"$ $\"About$

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Find the minimum of function f(x) = (x+1)^3 - (x-1)^3
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\n" ); document.write( "f'(x) = 3(x+1)^2 - 3(x-1)^2
\n" ); document.write( "3(x+1)^2 - 3(x-1)^2 = 0
\n" ); document.write( "(x+1)^2 - (x-1)^2 = 0
\n" ); document.write( " $\"x%5E2+%2B+2x+%2B+1+-+x%5E2+%2B+2x+-+1+=+0\"$
\n" ); document.write( "4x = 0
\n" ); document.write( "Min at x = 0
\n" ); document.write( "f(0) = 2
\n" ); document.write( "Minimum at (0,2)\r
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