document.write( "Question 824351: If each side of a square is increased by 3cm , its area is increased by 45cm^2. Find the length of a side of the original square. \n" ); document.write( "
Algebra.Com's Answer #496352 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! (x+3)^2 = x^2 + 45\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x^2 + 6x + 9 = x^2 + 45\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x^2 + 6x + 9 - x^2 = 45\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "6x + 9 = 45\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "6x = 45 - 9\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "6x = 36\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 36/6\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 6\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The side length of the original square is 6 cm \n" ); document.write( " |