[tex]\it 1)\ -\dfrac{5}{6} \ \textless \ 0 \Rightarrow f \ strict \ descresc\breve{a} toare
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2)\ \sqrt7 \ \textgreater \ 0 \Rightarrow f \ strict \ cresc\breve{a} toare
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3)\ f \ strict \ cresc\breve{a} toare\ pentru\ m+2\ \textgreater \ 0 \Rightarrow m\ \textgreater \ -2
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f \ strict \ descresc\breve{a} toare\ pentru\ m+2\ \textless \ 0 \Rightarrow m\ \textless \ -2[/tex]
