Solve P²+4P+5=0
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P2+4p+5=0
Here a= 1 b=4 &c=5
Now d= b2-4ac
= (4)^2-4×1×5
=16-20=-4
Here d <0 then root can't be existing
Here a= 1 b=4 &c=5
Now d= b2-4ac
= (4)^2-4×1×5
=16-20=-4
Here d <0 then root can't be existing
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