ja

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

人気のある代数 >

-4.9t^2+18.24t+0.8=-1.43t+4.26

解

- 4.9 t^{2} + 18.24 t + 0.8 = - 1.43 t + 4.26

解

t = \frac{281 - 7 1329}{140}, t = \frac{281 + 7 1329}{140}

+1

十進法表記

t = 0.18437 \dots, t = 3.82991 \dots

解答ステップ

- 4.9 t^{2} + 18.24 t + 0.8 = - 1.43 t + 4.26

以下で両辺を乗じる:

100

- 490 t^{2} + 1824 t + 80 = - 143 t + 426

426

を左側に移動します

- 490 t^{2} + 1824 t - 346 = - 143 t

143 t

を左側に移動します

- 490 t^{2} + 1967 t - 346 = 0

解くとthe二次式

t_{1, 2} = \frac{- 1967 \pm 196 7 ^{2} - 4 ( - 490 ) ( - 346 )}{2 ( - 490 )}

196 7^{2} - 4 (- 490) (- 346) = 491329

t_{1, 2} = \frac{- 1967 \pm 49 1329}{2 ( - 490 )}

解を分離する

t_{1} = \frac{- 1967 + 49 1329}{2 ( - 490 )}, t_{2} = \frac{- 1967 - 49 1329}{2 ( - 490 )}

t = \frac{- 1967 + 49 1329}{2 ( - 490 )} : \frac{281 - 7 1329}{140}

t = \frac{- 1967 - 49 1329}{2 ( - 490 )} : \frac{281 + 7 1329}{140}

二次equationの解:

t = \frac{281 - 7 1329}{140}, t = \frac{281 + 7 1329}{140}

グラフ

人気の例

x^{2} + 8 x - 80 = 0

\frac{x ^{2} + x}{2} = 0

3/8 x^2+3x+9/2 =0

\frac{3}{8} x^{2} + 3 x + \frac{9}{2} = 0

solvefor x,kx^2+36x+k=0

so l v e f or x, k x^{2} + 36 x + k = 0

solvefor y,x^2-2xy+1-3y^2=0

so l v e f or y, x^{2} - 2 x y + 1 - 3 y^{2} = 0