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rezolvati in R ecuatia (5x-1)-(x-6)(x+8)=85 va rog ajutati ma

Răspuns :

Matepentrutoti
(5x-1)-(x²+8x-6x-48)=85
5x-1-x²-2x+48=85
-x²+3x-38=0  |*(-1)
x²-3x+38=0 
Δ<0=> ecuatia nu are solutii reale.


Scumpikamyhaela
(5x-1)-(x²+8x-6x-48)=85
5x-1-x²-2x+48=85
-x²+3x-38=0  (-1)
x²-3x+38=0 
Δ <0=> ecuatia nu are solutii reale.

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