/
-a x -b x -c x -d
Calcule
#a x (#b) x (#c) x (#d)
]]>
le signe du résultat est "+" car il y a 4 signes "-" et "4" est un nombre pair.
et
#e x #f x #g x #h = #sol
]]>
1.0000000
1.0000000
0
0
#solution]]>
Super !]]>
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