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人気のある代数 >

2p^2+3p-4=0

解

2 p^{2} + 3 p - 4 = 0

解

p = \frac{- 3 + 41}{4}, p = \frac{- 3 - 41}{4}

+1

十進法表記

p = 0.85078 \dots, p = - 2.35078 \dots

解答ステップ

2 p^{2} + 3 p - 4 = 0

解くとthe二次式

p_{1, 2} = \frac{- 3 \pm 3 ^{2} - 4 \cdot 2 ( - 4 )}{2 \cdot 2}

3^{2} - 4 \cdot 2 (- 4) = 41

p_{1, 2} = \frac{- 3 \pm 41}{2 \cdot 2}

解を分離する

p_{1} = \frac{- 3 + 41}{2 \cdot 2}, p_{2} = \frac{- 3 - 41}{2 \cdot 2}

p = \frac{- 3 + 41}{2 \cdot 2} : \frac{- 3 + 41}{4}

p = \frac{- 3 - 41}{2 \cdot 2} : \frac{- 3 - 41}{4}

二次equationの解:

p = \frac{- 3 + 41}{4}, p = \frac{- 3 - 41}{4}

グラフ

人気の例

x^2-(k+3)x+3k=0

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

x^{2} - x = - 4

x^{2} - 16 x + 9 = 0

24 x^{2} + 6 = 24 x

solvefor x,f(x+1)=3x^2-4x+1

so l v e f or x, f (x + 1) = 3 x^{2} - 4 x + 1