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人気のある代数 >

-5=q(0.01q-0.4)

解

- 5 = q (0.01 q - 0.4)

解

q = \frac{0.4}{0.02} + i \frac{0.04}{0.02}, q = \frac{0.4}{0.02} - i \frac{0.04}{0.02}

解答ステップ

- 5 = q (0.01 q - 0.4)

拡張

q (0.01 q - 0.4) : 0.01 q^{2} - 0.4 q

- 5 = 0.01 q^{2} - 0.4 q

辺を交換する

0.01 q^{2} - 0.4 q = - 5

5

を左側に移動します

0.01 q^{2} - 0.4 q + 5 = 0

解くとthe二次式

q_{1, 2} = \frac{- ( - 0.4 ) \pm ( - 0.4 ) ^{2} - 4 \cdot 0.01 \cdot 5}{2 \cdot 0.01}

簡素化

(- 0.4)^{2} - 4 \cdot 0.01 \cdot 5 : 0.04 i

q_{1, 2} = \frac{- ( - 0.4 ) \pm 0.04 i}{2 \cdot 0.01}

解を分離する

q_{1} = \frac{- ( - 0.4 ) + 0.04 i}{2 \cdot 0.01}, q_{2} = \frac{- ( - 0.4 ) - 0.04 i}{2 \cdot 0.01}

q = \frac{- ( - 0.4 ) + 0.04 i}{2 \cdot 0.01} : \frac{0.4}{0.02} + i \frac{0.04}{0.02}

q = \frac{- ( - 0.4 ) - 0.04 i}{2 \cdot 0.01} : \frac{0.4}{0.02} - i \frac{0.04}{0.02}

二次equationの解:

q = \frac{0.4}{0.02} + i \frac{0.04}{0.02}, q = \frac{0.4}{0.02} - i \frac{0.04}{0.02}

グラフ

人気の例

因数 2x^2+4x=0

f a c t or 2 x^{2} + 4 x = 0

x^{2} - 20 x - 12 = - 9

6 a^{2} = - 6 + 10 a

3 x^{2} + 4 x + 9 = 0

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