document.write( "Question 417504: the area of a square is 45 more than the perimeter. find the length of a side :) \n" ); document.write( "
Algebra.Com's Answer #292278 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Hi
\n" ); document.write( "Let s represent the length of a side
\n" ); document.write( "Question states***
\n" ); document.write( " s^2 = 4s + 45
\n" ); document.write( " s^2 - 4s -45 = 0
\n" ); document.write( "factoring
\n" ); document.write( " (x+5)(x-9)=0
\n" ); document.write( " (x+5)= 0 x =-5 Tossing out negative solution for length
\n" ); document.write( "( x-9)= 0 x = 9, the length of a side\r
\n" ); document.write( "\n" ); document.write( "CHECKING our Answer***
\n" ); document.write( " 81 = 36 + 45 = 81 \n" ); document.write( "
\n" );