document.write( "Question 391733: Ok so i've done this problem at least 20 times and i don't know what i am doing wrong! The work seems to be right, but every time that i have done it, it does not check out properly. Please help!\r
\n" ); document.write( "\n" ); document.write( "Question: If the square of a positive number is decreased by twice the number the result is 15. Find the number.\r
\n" ); document.write( "\n" ); document.write( "Thank you!
\n" ); document.write( "

Algebra.Com's Answer #277912 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
If the square of a positive number is decreased by twice the number the result is 15. Find the number.
\n" ); document.write( "--------------
\n" ); document.write( "Equation:
\n" ); document.write( "x^2-2x = 15
\n" ); document.write( "---
\n" ); document.write( "x^2-2x-15 = 0
\n" ); document.write( "Factor:
\n" ); document.write( "(x-5)(x+3) = 0
\n" ); document.write( "---
\n" ); document.write( "Positive solution:
\n" ); document.write( "x = 5
\n" ); document.write( "====================
\n" ); document.write( "Check:
\n" ); document.write( "5^2-2*5 = 15
\n" ); document.write( "25-10 = 15
\n" ); document.write( "15 = 15
\n" ); document.write( "====================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "---
\n" ); document.write( "
\n" );