document.write( "Question 6035: x2 +8x -84 =0 \n" ); document.write( "

Algebra.Com's Answer #3183 by Abbey(339) $\"\"$ $\"About$

You can put this solution on YOUR website!
If you can't figure out that this factors into:
\n" ); document.write( "(x+14)(x-6) then it is easy to use the quadratic equation:
\n" ); document.write( "Let a=1
\n" ); document.write( "Let b=8
\n" ); document.write( "Let c= -84
\n" ); document.write( "and use the quadratic equation:
\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( " $\"x+=+%28-8+%2B-+sqrt%28+8%5E2-4%2A1%2A-84+%29%29%2F%282%2A1%29+\"$
\n" ); document.write( " $\"x+=+%28-8+%2B-+sqrt%28+64%2B336+%29%29%2F%282%29+\"$
\n" ); document.write( " $\"x+=+%28-8+%2B-+sqrt%28+400+%29%29%2F%282%29+\"$
\n" ); document.write( " $\"x+=+%28-8+%2B-+20%2F%282%29%29+\"$
\n" ); document.write( " $\"x+=+-4+%2B-+10+\"$
\n" ); document.write( "x=-14, x=6\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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