document.write( "Question 307168: [SQRT (8) + SQRT (16)] / [SQRT (8) + SQRT (81)] \n" ); document.write( "
Algebra.Com's Answer #219769 by dabanfield(803)\"\" \"About 
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[SQRT (8) + SQRT (16)] / [SQRT (8) + SQRT (81)] =\r
\n" ); document.write( "\n" ); document.write( "(sqrt(4*2) + 4)/(sqrt(4*2) + 9) =\r
\n" ); document.write( "\n" ); document.write( "2*sqrt(2) + 4 / 2*sqrt(2) + 9\r
\n" ); document.write( "\n" ); document.write( "Multiply numerator and denominator by 2*sqrt(2) - 9:\r
\n" ); document.write( "\n" ); document.write( "(2*sqrt(2) + 4)*(2*sqrt(2) - 9)/ (2*sqrt(2) + 9)*(2*sqrt(2) - 9)) =
\n" ); document.write( "(4*sqrt(2)^2 - 18*sqrt(2) + 8*sqrt(2) - 36)/(4*sqrt(2)^2 - 81) =
\n" ); document.write( "(4*2 - 10*sqrt(2) - 36)/(4*2 - 81) =
\n" ); document.write( "(8 - 10sqrt(2) - 36)/ (8 - 81)
\n" ); document.write( "(-10*sqrt(2) - 28)/-73 =
\n" ); document.write( "(28 + 10 sqrt(2))/73\r
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