document.write( "Question 1124445: The square of a negative number is fifty-four more than three times the negative number. Find the number. \n" ); document.write( "
Algebra.Com's Answer #740745 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "if a negative number is \"-x\"\r
\n" ); document.write( "\n" ); document.write( "and if the square of a negative number is \"54\" more than \"three\" times the negative number, we have\r
\n" ); document.write( "\n" ); document.write( "\"%28-x%29%5E2=3%2A%28-x%29%2B54\"...since \"%28-x%29%5E2=%28-x%29%28-x%29=x%5E2\",we have\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2=-3x%2B54\"\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B3x-54=0\"...actor\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B9x-6x-54=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2%2B9x%29-%286x%2B54%29=0\"\r
\n" ); document.write( "\n" ); document.write( "\"x%28x%2B9%29-6%28x%2B9%29=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x+-+6%29+%28x+%2B+9%29+=+0\"\r
\n" ); document.write( "\n" ); document.write( "solutions:\r
\n" ); document.write( "\n" ); document.write( "if \"%28x+-+6%29++=+0\"->\"x=6\"-> since we are looking for negative number, disregard this solution\r
\n" ); document.write( "\n" ); document.write( "i \"+%28x+%2B+9%29+=+0\"->\"highlight%28x=-9%29\"-> your number\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );