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人気のある代数 >

-4x^2-13x-3=0

解

- 4 x^{2} - 13 x - 3 = 0

解

x = - 3, x = - \frac{1}{4}

+1

十進法表記

x = - 3, x = - 0.25

解答ステップ

- 4 x^{2} - 13 x - 3 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 13 ) \pm ( - 13 ) ^{2} - 4 ( - 4 ) ( - 3 )}{2 ( - 4 )}

(- 13)^{2} - 4 (- 4) (- 3) = 11

x_{1, 2} = \frac{- ( - 13 ) \pm 11}{2 ( - 4 )}

解を分離する

x_{1} = \frac{- ( - 13 ) + 11}{2 ( - 4 )}, x_{2} = \frac{- ( - 13 ) - 11}{2 ( - 4 )}

x = \frac{- ( - 13 ) + 11}{2 ( - 4 )} : - 3

x = \frac{- ( - 13 ) - 11}{2 ( - 4 )} : - \frac{1}{4}

二次equationの解:

x = - 3, x = - \frac{1}{4}

グラフ

人気の例

x^{2} - 2 - 48 = 0

completesquare 3x^2+2x+2

co m pl e t es q u a re 3 x^{2} + 2 x + 2

25(5x-1)^2-40=-4

25 (5 x - 1)^{2} - 40 = - 4

solvefor y,x^2=4y^2

so l v e f or y, x^{2} = 4 y^{2}

x^{2} = - 32 + 12 x