document.write( "Question 372514: Use the quadratic formula to solve x2 + 8x + 9 = 0.
\n" ); document.write( "Estimate irrational solutions to the nearest tenth.
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Algebra.Com's Answer #265375 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"x%5E2+%2B+8x+%2B+9+=+0\"$
\n" ); document.write( "Use the quadratic formula,
\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( " $\"x+=+%28-8+%2B-+sqrt%28+8%5E2-4%2A1%2A9+%29%29%2F%282%2A1%29+\"$
\n" ); document.write( " $\"x+=+%28-8+%2B-+sqrt%28+64-36+%29%29%2F2+\"$
\n" ); document.write( " $\"x+=+%28-8+%2B-+sqrt%28+28+%29%29%2F2+\"$
\n" ); document.write( " $\"x+=+%28-8+%2B-+2%2Asqrt%28+7+%29%29%2F2+\"$
\n" ); document.write( " $\"highlight%28x+=+-4+%2B-+sqrt%28+7+%29%29+\"$
\n" ); document.write( "Time to get out the calculator for the estimating.\r
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