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Ecuatia x la patrat +3x+4=0 nu are solutii reale... Adevarat sau fals?

Răspuns :

[tex] x^{2} +3x+4=0[/tex]
[tex]\Delta=3^2-4\cdot1\cdot4=9-16=-7 \ \textless \ 0\\ \Delta\ \textless \ 0 \;\;\rightarrow\;\;x_1\ne{x_2}\not\in{R}\\ adica\;ecuatia\;nu\;are\;solutii\;in\;multimea\;numerelor\;reale\;! [/tex]

Raspuns : adevarat ;