Variable moko: kobimisa motuya ya fonction mpo na ba valeurs ebele

Tobimisa motuya ya fonction mpo na ba valeurs ebele ya $\displaystyle x$. Fonction ezali $\displaystyle x^{3} - 3x^{2} + 2$. Koma yango mbala moko: bofina , na nsima , , , . Bofina , koma 3, na nsima , , . Bofina mpe koma 2. Sikoyo tobimisa motuya na yango mpo na $\displaystyle x = -1$. Bofina mpe , oyo ebengami ALGB: yango epesaka nzela ya kokotisa valeur moko mpo na $\displaystyle x$, variable moko kati na expression na biso. Calculatrice esengi $\displaystyle x$: bofina , koma 1, mpe bofina . Eyano ezali −2.. Tobimisa motuya na yango lisusu, mpo na $\displaystyle x = -0.5$. Bofina , , na nsima , 0.5, mpe : $\displaystyle 1\dfrac{1}{8}$.