document.write( "Question 246072: x2 + 8x = 3 \n" ); document.write( "
Algebra.Com's Answer #179730 by richwmiller(17219)\"\" \"About 
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assuming you mean
\n" ); document.write( "x^2+8x=3
\n" ); document.write( "we need to complete the square or use the quadratic formula.
\n" ); document.write( "take (8/2)^2=4^2=16
\n" ); document.write( "add 16 to both sides
\n" ); document.write( "x^2+8x+16=19
\n" ); document.write( "factor left side
\n" ); document.write( "(x+4)^2=19
\n" ); document.write( "get sqrts
\n" ); document.write( "|x+4|=sqrt(19)
\n" ); document.write( "x+4=+sqrt(19)
\n" ); document.write( "x+4=-sqrt(19)
\n" ); document.write( "subtract four from both sides
\n" ); document.write( "x=-4-sqrt(19) or x=-4+sqrt(19)\r
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