document.write( "Question 82708: Q) 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 #59312 by neil_m(2)\"\" \"About 
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A) This problem can be solved by adding together the sides of the triangle and collecting the coefficients of x.\r
\n" ); document.write( "\n" ); document.write( "The perimeter (P) of a triangle is equal to the sum of its three sides, in this case:\r
\n" ); document.write( "\n" ); document.write( "P = (3x+7) + (4x-9) + (5x-6)\r
\n" ); document.write( "\n" ); document.write( "If we group together the coefficients (numbers multiplied by x) and constants, we can condense the expression into a single polynomial:\r
\n" ); document.write( "\n" ); document.write( "P = (3+4+5)x+(7-9-6)\r
\n" ); document.write( "\n" ); document.write( " = 12x-8
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