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Old 05-04-2007   #33
lotus_eater
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1+2+3+4+5+6+7+8-(1+2+3)+1+2+3-5!+1+2
+3+4+5+6+7+8+9+10+11+12+13+14+15-(1+2+3+4+3-4-3-2-1)
-81-83+45-87+12-45+712-91+108-45+85-530
+x1-x3+4x2-2x4+12-4x1+5



x^2 +x +12=0 > x1,x2
x^2 +2x -3=0 > x3,x4

Last edited by lotus_eater; 05-04-2007 at 11:38 AM..