document.write( "Question 397630: (x-4)^4= 81 \n" ); document.write( "

Algebra.Com's Answer #281721 by robertb(5830) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"%28x-4%29%5E4=+81\"$
\n" ); document.write( "==> $\"%28x-4%29%5E4+-+81=0\"$
\n" ); document.write( "<==> $\"%28%28x-4%29%5E2+-+9%29%28%28x-4%29%5E2+%2B+9%29+=+0\"$
\n" ); document.write( "<==> (x- 4-3)(x - 4 +3)(x -4 - 3i)(x - 4 + 3i) = 0
\n" ); document.write( "<==> (x -7)(x -1)(x -4 - 3i)(x - 4 + 3i) = 0
\n" ); document.write( "Then the solutions to the original equation are (including imaginary roots) are
\n" ); document.write( "7,1, 4 + 3i, 4 - 3i. \n" ); document.write( "

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