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人気のある代数 >

-4.9t^2+41.67t+60=0

解

- 4.9 \cdot t^{2} + 41.67 \cdot t + 60 = 0

解

t = - \frac{- 4167 + 29123889}{980}, t = \frac{4167 + 29123889}{980}

+1

十進法表記

t = - 1.25475 \dots, t = 9.75883 \dots

解答ステップ

- 4.9 t^{2} + 41.67 t + 60 = 0

以下で両辺を乗じる:

100

- 490 t^{2} + 4167 t + 6000 = 0

解くとthe二次式

t_{1, 2} = \frac{- 4167 \pm 416 7 ^{2} - 4 ( - 490 ) \cdot 6000}{2 ( - 490 )}

416 7^{2} - 4 (- 490) \cdot 6000 = 29123889

t_{1, 2} = \frac{- 4167 \pm 29123889}{2 ( - 490 )}

解を分離する

t_{1} = \frac{- 4167 + 29123889}{2 ( - 490 )}, t_{2} = \frac{- 4167 - 29123889}{2 ( - 490 )}

t = \frac{- 4167 + 29123889}{2 ( - 490 )} : - \frac{- 4167 + 29123889}{980}

t = \frac{- 4167 - 29123889}{2 ( - 490 )} : \frac{4167 + 29123889}{980}

二次equationの解:

t = - \frac{- 4167 + 29123889}{980}, t = \frac{4167 + 29123889}{980}

グラフ

人気の例

-11x^2+26x+61=0

- 11 x^{2} + 26 x + 61 = 0

(8x+4}{15}=\frac{9x+7)/7-6

\frac{8 x + 4}{15} = \frac{9 x + 7}{7} - 6

∣ x - 5 ∣ \leq 4

(8.8-x)^2=8.8^2-x^2

(8.8 - x)^{2} = 8. 8^{2} - x^{2}

\frac{z}{- 1} \leq - 2