document.write( "Question 376027: solve\r
\n" ); document.write( "\n" ); document.write( "x^2 + (x+7)^2 = 169
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Algebra.Com's Answer #267429 by nerdybill(7384)\"\" \"About 
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x^2 + (x+7)^2 = 169
\n" ); document.write( "x^2 + (x+7)(x+7) = 169
\n" ); document.write( "x^2 + x^2+14x+49 = 169
\n" ); document.write( "2x^2+14x+49 = 169
\n" ); document.write( "2x^2+14x-120 = 0
\n" ); document.write( "x^2+7x-60 = 0
\n" ); document.write( "(x+12)(x-5) = 0
\n" ); document.write( "x = {-12, 5}
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