Résoudre une équation du second degré sans coefficient constant Exercice

Dernière modification : 12/05/2025 - Conforme au programme 2024-2025

Résoudre chacune des équations suivantes sur \mathbb{R}.

(E):2x^2-x=0

S=\left\{0,\dfrac{1}{2}\right\}

S=\left\{\dfrac{−1}{2},\dfrac{1}{2}\right\}

S=\left\{0\right\}

S=\left\{\dfrac{1}{2}\right\}

(E):4x^2-3x=0

S=\left\{0,\dfrac{3}{4}\right\}

S=\left\{\dfrac{−3}{4},\dfrac{3}{4}\right\}

S=\left\{0\right\}

S=\left\{\dfrac{3}{4}\right\}

(E):5x^2+7x=0

S=\left\{0,\dfrac{−7}{5}\right\}

S=\left\{\dfrac{−7}{5},\dfrac{7}{5}\right\}

S=\left\{0\right\}

S=\left\{\dfrac{−7}{5}\right\}

(E):5x^2+10x=0

S=\left\{0,−2\right\}

S=\left\{−2{,}2\right\}

S=\left\{0\right\}

S=\left\{−2\right\}

(E):3x^2-9x=0

S=\left\{0{,}3\right\}

S=\left\{−3{,}3\right\}

S=\left\{0\right\}

S=\left\{−3\right\}