document.write( "Question 622804: Solve the quadratic equation by completing the square. (Enter your answers as a comma-separated list.)
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\n" ); document.write( "x2 + 5x − 2 = 0 \n" ); document.write( "
Algebra.Com's Answer #391638 by lwsshak3(11628)\"\" \"About 
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Solve the quadratic equation by completing the square. (Enter your answers as a comma-separated list.)
\n" ); document.write( "x2 + 5x − 2 = 0
\n" ); document.write( "(x^2+5x)-2=0
\n" ); document.write( "To make the first expression a perfect square, take 1/2 of the coefficient(5) of the x-term and square it=(5/2)^2=25/4, then add it to the expression.
\n" ); document.write( "(x^2+5x+25/4)=2
\n" ); document.write( "since you added 25/4 to the left side, you must add 25/4 to the right side.
\n" ); document.write( "(x^2+5x+25/4)=2+25/4
\n" ); document.write( "(x+5/2)^2=33/4
\n" ); document.write( "take sqrt of both sides
\n" ); document.write( "x+5/2=±√(33/4)≈2.87
\n" ); document.write( "x≈-5/2±2.87
\n" ); document.write( "x≈-2.5±2.87
\n" ); document.write( "x≈-5.37
\n" ); document.write( "or
\n" ); document.write( "x≈.37
\n" ); document.write( "ans: x=-5.37, 0.37
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