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) ![]() You can put this solution on YOUR website! 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) \n" ); document.write( " \n" ); document.write( " |