document.write( "Question 29124: A rectangle has sides of 2x2 - 3x – 4 and 7x2+3x + 10. Find the expression that represents its perimeter. \n" ); document.write( "
Algebra.Com's Answer #15921 by sdmmadam@yahoo.com(530)\"\" \"About 
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A rectangle has sides of 2x2 - 3x – 4 and 7x2+3x + 10.
\n" ); document.write( "Find the expression that represents its perimeter.\r
\n" ); document.write( "\n" ); document.write( "If L is the length and B is the width of a rectangle,
\n" ); document.write( "then the perimeter of the rectangle is given by
\n" ); document.write( "Perimeter = 2(L+B) ----(*)
\n" ); document.write( "Given L= 2x^2 - 3x – 4 and B = 7x^2+3x + 10.
\n" ); document.write( "Therefore Perimeter = 2[ (2x^2 - 3x – 4)+ (7x^2+3x + 10)]
\n" ); document.write( "=2[(2+7)x^2+(-3+3)x+(-4+10)] (grouping like terms)
\n" ); document.write( "=2[9x^2+0+6]
\n" ); document.write( "=2X(9x^2+6)
\n" ); document.write( "=2X3(3x^2+2)
\n" ); document.write( "=6(3x^2+2)
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