document.write( "Question 634899: x^2+4x+2=0
\n" ); document.write( "solve it \n" ); document.write( "

Algebra.Com's Answer #399984 by jsmallt9(3758) $\"\"$ $\"About$

You can put this solution on YOUR website!
Factoring is usually the easier way to solve these. But not everything factors, including this equation. So we will resort to the Quadratic Formula:
\n" ); document.write( " $\"x+=+%28-%284%29+%2B-+sqrt%28%284%29%5E2-4%281%29%282%29%29%29%2F2%281%29\"$
\n" ); document.write( "Now we simplify:
\n" ); document.write( " $\"x+=+%28-%284%29+%2B-+sqrt%2816-4%281%29%282%29%29%29%2F2%281%29\"$
\n" ); document.write( " $\"x+=+%28-%284%29+%2B-+sqrt%2816-8%29%29%2F2%281%29\"$
\n" ); document.write( " $\"x+=+%28-%284%29+%2B-+sqrt%288%29%29%2F2%281%29\"$
\n" ); document.write( " $\"x+=+%28-4+%2B-+sqrt%288%29%29%2F2\"$
\n" ); document.write( " $\"x+=+%28-4+%2B-+sqrt%284%2A2%29%29%2F2\"$
\n" ); document.write( " $\"x+=+%28-4+%2B-+sqrt%284%29%2Asqrt%282%29%29%2F2\"$
\n" ); document.write( " $\"x+=+%28-4+%2B-+2%2Asqrt%282%29%29%2F2\"$
\n" ); document.write( " $\"x+=+%282%28-2+%2B-+sqrt%282%29%29%29%2F2\"$
\n" ); document.write( " $\"x+=+%28cross%282%29%28-2+%2B-+sqrt%282%29%29%29%2Fcross%282%29\"$
\n" ); document.write( " $\"x+=+-2+%2B-+sqrt%282%29\"$
\n" ); document.write( "which is short for:
\n" ); document.write( " $\"x+=+-2+%2B+sqrt%282%29\"$ or $\"x+=+-2+-+sqrt%282%29\"$ \n" ); document.write( "

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