document.write( "Question 1190662: Solve by factoring: 81 - x^2 = 0, 25 + x^2 = 10x \n" ); document.write( "
Algebra.Com's Answer #822360 by Alan3354(69443)\"\" \"About 
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Solve by factoring: 81 - x^2 = 0
\n" ); document.write( "(9-x)*(9+x) = 0
\n" ); document.write( "x = -9, +9
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\n" ); document.write( "25 + x^2 = 10x
\n" ); document.write( "x^2 - 10x + 25 = 0
\n" ); document.write( "(x-5)^2 = 0
\n" ); document.write( "x = 5
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