document.write( "Question 443841: x^2-225=0 \n" ); document.write( "
Algebra.Com's Answer #306084 by nerdybill(7384)\"\" \"About 
You can put this solution on YOUR website!
x^2-225=0
\n" ); document.write( "x^2-15^2=0 (difference of squares)
\n" ); document.write( "(x-15)(x+15) = 0
\n" ); document.write( "x = {-15, 15}
\n" ); document.write( "
\n" );