t^2+3t=0

解

t^{2} + 3 t = 0

t = 0, t = - 3

解答ステップ

t^{2} + 3 t = 0

解くとthe二次式

t_{1, 2} = \frac{- 3 \pm 3 ^{2} - 4 \cdot 1 \cdot 0}{2 \cdot 1}

3^{2} - 4 \cdot 1 \cdot 0 = 3

t_{1, 2} = \frac{- 3 \pm 3}{2 \cdot 1}

解を分離する

t_{1} = \frac{- 3 + 3}{2 \cdot 1}, t_{2} = \frac{- 3 - 3}{2 \cdot 1}

t = \frac{- 3 + 3}{2 \cdot 1} : 0

t = \frac{- 3 - 3}{2 \cdot 1} : - 3

二次equationの解:

t = 0, t = - 3