document.write( "Question 340300: if x^8+1/x^8=2207
\n" );
document.write( "find x+1/x \n" );
document.write( "
Algebra.Com's Answer #243818 by mananth(16946) You can put this solution on YOUR website! x^8+1/x^8=2207 \n" ); document.write( ".. \n" ); document.write( "(x^4+1/x^4)^2-2 =2207 \n" ); document.write( ".. \n" ); document.write( "(x^2+1/x^2)^2-2-2=2207 \n" ); document.write( "(x+1/x)^2 -2-2-2=2207 \n" ); document.write( "(x+1/x)^2= 2213 \n" ); document.write( "sqrt(x +1/x)^2= sqrt2213 \n" ); document.write( "(x + 1/x ) = 47.04 \n" ); document.write( " |