document.write( "Question 394082: how do u get x in the problem of x squared plus 3x minus 15 is equal to 0 \n" ); document.write( "
Algebra.Com's Answer #279612 by mananth(16946)\"\" \"About 
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how do u get x in the problem of x squared plus 3x minus 15 is equal to 0
\n" ); document.write( "...
\n" ); document.write( "x^2-3x+15
\n" ); document.write( "Find the roots of the equation by quadratic formula
\n" ); document.write( "a= 1 , b = -3 , c = -15 .
\n" ); document.write( "b^2-4ac= 9+60=69\r
\n" ); document.write( "\n" ); document.write( "\"x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29\"\r
\n" ); document.write( "\n" ); document.write( "\"x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29\"
\n" ); document.write( "\"x1=%283%2Bsqrt%2869%29%29%2F%282%29\"
\n" ); document.write( "2.6533119314590374\r
\n" ); document.write( "\n" ); document.write( "...
\n" ); document.write( "\"x2=%28-b-sqrt%28b%5E2-4ac%29%29%2F%282a%29\"
\n" ); document.write( "\"x2=%283-sqrt%2869%29%29%2F%282%29\"
\n" ); document.write( "-5.653311931459037\r
\n" ); document.write( "\n" ); document.write( ",,,
\n" ); document.write( "m.ananth@hotmail.ca\r
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