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人気のある代数 >

-5x^2+70x-295=0

解

- 5 x^{2} + 70 x - 295 = 0

解

x = 7 - 10 i, x = 7 + 10 i

解答ステップ

- 5 x^{2} + 70 x - 295 = 0

解くとthe二次式

x_{1, 2} = \frac{- 70 \pm 7 0 ^{2} - 4 ( - 5 ) ( - 295 )}{2 ( - 5 )}

簡素化

7 0^{2} - 4 (- 5) (- 295) : 1010 i

x_{1, 2} = \frac{- 70 \pm 10 10 i}{2 ( - 5 )}

解を分離する

x_{1} = \frac{- 70 + 10 10 i}{2 ( - 5 )}, x_{2} = \frac{- 70 - 10 10 i}{2 ( - 5 )}

x = \frac{- 70 + 10 10 i}{2 ( - 5 )} : 7 - 10 i

x = \frac{- 70 - 10 10 i}{2 ( - 5 )} : 7 + 10 i

二次equationの解:

x = 7 - 10 i, x = 7 + 10 i

グラフ

人気の例

a (x) = x^{2} + 3 x - 10

solvefor x,x^2-3xy=10

so l v e f or x, x^{2} - 3 x y = 10

mx^2+(2m-3)x+m-3=0

m x^{2} + (2 m - 3) x + m - 3 = 0

solvefor p,xp^2+(x-y)p+1-y=0

so l v e f or p, x p^{2} + (x - y) p + 1 - y = 0

15 x^{2} - 19 x + 6 = 0