document.write( "Question 290245: 9a2+42a-49 \n" ); document.write( "

Algebra.Com's Answer #210029 by checkley77(12844) $\"\"$ $\"About$

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9a^2+42a-49
\n" ); document.write( " $\"a+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( "a=(-42+-sqrt[42^2-4*9*-49])/2*9
\n" ); document.write( "a=(-42+-sqrt[1764+1764])/18
\n" ); document.write( "a=(-42+-sqrt3528)/18
\n" ); document.write( "a=(-42+-59.397)/18
\n" ); document.write( "a=(-42+59.397)/18
\n" ); document.write( "a=17.397/18
\n" ); document.write( "a=.9665 ans.
\n" ); document.write( "a=(-42-59.397)/18
\n" ); document.write( "a=-101.397/18
\n" ); document.write( "a=-5.633 ans. \n" ); document.write( "

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