document.write( "Question 846042: I am having trouble with a question on Quadratic Equations. It says:\r
\n" ); document.write( "\n" ); document.write( "SOLVE EACH EQUATION BY COMPLETING THE SQUARE\r
\n" ); document.write( "\n" ); document.write( "\"+x%5E2%2B10x-11=0+\"\r
\n" ); document.write( "\n" ); document.write( "\"+p%5E2-8p%2B12=0+\"\r
\n" ); document.write( "\n" ); document.write( "\"+r%5E2-2r-15=0+\" \r
\n" ); document.write( "\n" ); document.write( "My answers are; \r
\n" ); document.write( "\n" ); document.write( "x= 1, -11
\n" ); document.write( "p= 6, 2
\n" ); document.write( "r= 3, -5\r
\n" ); document.write( "\n" ); document.write( "The grading system says they are wrong, but it does make make mistakes sometimes.
\n" ); document.write( "

Algebra.Com's Answer #509552 by psbhowmick(878)\"\" \"About 
You can put this solution on YOUR website!
\"r%5E2-2r-15=0\"
\n" ); document.write( "\"%28r%5E2-2%2Ar%2A1%2B1%5E2%29-1%5E2-15=0\"
\n" ); document.write( "\"%28r-1%29%5E2-1-15=0\"
\n" ); document.write( "\"%28r-1%29%5E2=16\"
\n" ); document.write( "\"x+=+1+%2B-+sqrt%2816%29\"
\n" ); document.write( "\"x+=+1+%2B-+4\"
\n" ); document.write( "\"x+=+-3\",\"5\"\r
\n" ); document.write( "\n" ); document.write( "Your other answers look correct!
\n" ); document.write( "
\n" );