g^2+4g+4=0

解

g^{2} + 4 g + 4 = 0

g = - 2

解答ステップ

g^{2} + 4 g + 4 = 0

解くとthe二次式

g_{1, 2} = \frac{- 4 \pm 4 ^{2} - 4 \cdot 1 \cdot 4}{2 \cdot 1}

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

g_{1, 2} = \frac{- 4 \pm 0}{2 \cdot 1}

g = \frac{- 4}{2 \cdot 1}

\frac{- 4}{2 \cdot 1} = - 2

g = - 2

二次equationの解:

g = - 2