document.write( "Question 40090: A triangle has sides 3x + 7, 4x - 9 and 5x + 6. Find the polynomial that represents its perimeter. \n" ); document.write( "
Algebra.Com's Answer #25519 by fractalier(6550)\"\" \"About 
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Perimeter is the sum of the lengths of the sides...therefore
\n" ); document.write( "P = 3x + 7 + 4x - 9 + 5x + 6 =
\n" ); document.write( "P = 12x + 4
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