document.write( "Question 778715: x to the second power plus 3x=28 \n" ); document.write( "
Algebra.Com's Answer #474867 by rothauserc(4718)\"\" \"About 
You can put this solution on YOUR website!
x to the second power plus 3x=28
\n" ); document.write( "x^2 +3x -28 = 0
\n" ); document.write( "factor this equation
\n" ); document.write( "(x+7) * (x-4) = 0
\n" ); document.write( "x = -7 or 4
\n" ); document.write( "
\n" ); document.write( "
\n" );