document.write( "Question 979144: x^2 + 6x + 8 = 0 Solve quadratic equation by factoring and show a check of your solutions back into the original equation. I've gotten the factoring completed, having trouble with checking the solution. Please HELP!! Greatly appreciated.
\n" ); document.write( "Here's what I have:
\n" ); document.write( "x^2 + 6x + 8 = 0
\n" ); document.write( "(x+2)(x+4)=0
\n" ); document.write( "x+2=0
\n" ); document.write( "x+4=0
\n" ); document.write( "{-2, -4)\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #600433 by MathLover1(20849)\"\" \"About 
You can put this solution on YOUR website!
you did it correct \r
\n" ); document.write( "\n" ); document.write( "\"+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2Cx%5E2+%2B+6x+%2B+8%29+\"\r
\n" ); document.write( "\n" ); document.write( "check:\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2+%2B+6x+%2B+8+=+0\".....if \"x=-2\"\r
\n" ); document.write( "\n" ); document.write( "\"%28-2%29%5E2+%2B+6%28-2%29+%2B+8+=+0\"\r
\n" ); document.write( "\n" ); document.write( "\"4+-12+%2B+8+=+0\"\r
\n" ); document.write( "\n" ); document.write( "\"12-12+=+0\"\r
\n" ); document.write( "\n" ); document.write( "\"0=+0\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"x%5E2+%2B+6x+%2B+8+=+0\".....if \"x=-4\"\r
\n" ); document.write( "\n" ); document.write( "\"%28-4%29%5E2+%2B+6%28-4%29+%2B+8+=+0\"\r
\n" ); document.write( "\n" ); document.write( "\"16+-24+%2B+8+=+0\"\r
\n" ); document.write( "\n" ); document.write( "\"24-24+=+0\"\r
\n" ); document.write( "\n" ); document.write( "\"0=+0\"\r
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