document.write( "Question 687745: What is the simplest explanation on how to factor 4a^2 - 4a + 1, as well as \"What+is+the+simplest+explanation+on+how+to+factor+4a%5E2+-+4a+%2B+1%2C+as+well+as+\" 81r^2 minus 36rs plus 4s^2? \n" ); document.write( "
Algebra.Com's Answer #425314 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
What is the simplest explanation on how to factor 4a^2 - 4a + 1, as well as 81r^2 minus 36rs plus 4s^2?\r
\n" ); document.write( "\n" ); document.write( "-----
\n" ); document.write( "Both ae \"perfect square trinomials.
\n" ); document.write( "----
\n" ); document.write( "4a^2 - 4a + 1 = (2a-1)^2
\n" ); document.write( "------
\n" ); document.write( "81r^2 minus 36rs plus 4s^2 = (9r-2s)^2
\n" ); document.write( "==========================================
\n" ); document.write( "cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "======================
\n" ); document.write( "
\n" );