document.write( "Question 932991: Two times a number plus the square of the number equals 48.
\n" ); document.write( "Find the number.
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Algebra.Com's Answer #566496 by ptfile(81)\"\" \"About 
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Let x = the number\r
\n" ); document.write( "\n" ); document.write( "Two times a number plus the square of the number equals 48.
\n" ); document.write( " 2x+x^2=48
\n" ); document.write( " x^2+2x-48=0
\n" ); document.write( "(x+8)(x-6)=0\r
\n" ); document.write( "\n" ); document.write( "x=-8
\n" ); document.write( "or
\n" ); document.write( "x=6\r
\n" ); document.write( "\n" ); document.write( "Substitute x with -8
\n" ); document.write( "2(-8)+ (-8)^2=48
\n" ); document.write( " -16 + 64=48
\n" ); document.write( " 48=48\r
\n" ); document.write( "\n" ); document.write( "Substitute x with 6
\n" ); document.write( " 2(6)+ (6)^2=48
\n" ); document.write( " 12 + 36=48
\n" ); document.write( " 48=48\r
\n" ); document.write( "\n" ); document.write( "The number is either -8 or 6.\r
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