document.write( "Question 280924: Solve by applying the Quadratic Formula; all radicals should be simplified as far as possible. Show your work.\r
\n" ); document.write( "\n" ); document.write( "x^2 - 4x - 7 = 0
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Algebra.Com's Answer #204142 by checkley77(12844)\"\" \"About 
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x^2 - 4x - 7 = 0
\n" ); document.write( "\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"
\n" ); document.write( "x=(4+-sqrt[-4^2-4*1*-7])/2*1
\n" ); document.write( "x=(4+-sqrt16+28])/2
\n" ); document.write( "x=(4+-sqrt44)/2
\n" ); document.write( "x=(4+-6.63325)/2
\n" ); document.write( "x=(4+6.63325)/2
\n" ); document.write( "x=10.63325)/2
\n" ); document.write( "x=5.317 ans.
\n" ); document.write( "x=(4-6.63325)/2
\n" ); document.write( "x=(-2.63325)/2
\n" ); document.write( "x=-1.317 ans.
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