x^2+64x-320000=0

解

x^{2} + 64 x - 320000 = 0

x = 16 (1254 - 2), x = - 16 (2 + 1254)

十進法表記

x = 534.58979 \dots, x = - 598.58979 \dots

解答ステップ

x^{2} + 64 x - 320000 = 0

解くとthe二次式

x_{1, 2} = \frac{- 64 \pm 6 4 ^{2} - 4 \cdot 1 \cdot ( - 320000 )}{2 \cdot 1}

6 4^{2} - 4 \cdot 1 \cdot (- 320000) = 321254

x_{1, 2} = \frac{- 64 \pm 32 1254}{2 \cdot 1}

解を分離する

x_{1} = \frac{- 64 + 32 1254}{2 \cdot 1}, x_{2} = \frac{- 64 - 32 1254}{2 \cdot 1}

x = \frac{- 64 + 32 1254}{2 \cdot 1} : 16 (1254 - 2)

x = \frac{- 64 - 32 1254}{2 \cdot 1} : - 16 (2 + 1254)

二次equationの解:

x = 16 (1254 - 2), x = - 16 (2 + 1254)