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受欢迎的代数 >

3p^2+11p=4

解答

3 p^{2} + 11 p = 4

解答

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

+1

十进制

p = 0.33333 \dots, p = - 4

求解步骤

3 p^{2} + 11 p = 4

将

4

para o lado esquerdo

3 p^{2} + 11 p - 4 = 0

使用求根公式求解

p_{1, 2} = \frac{- 11 \pm 1 1 ^{2} - 4 \cdot 3 ( - 4 )}{2 \cdot 3}

1 1^{2} - 4 \cdot 3 (- 4) = 13

p_{1, 2} = \frac{- 11 \pm 13}{2 \cdot 3}

将解分隔开

p_{1} = \frac{- 11 + 13}{2 \cdot 3}, p_{2} = \frac{- 11 - 13}{2 \cdot 3}

p = \frac{- 11 + 13}{2 \cdot 3} : \frac{1}{3}

p = \frac{- 11 - 13}{2 \cdot 3} : - 4

二次方程组的解是:

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

作图

流行的例子

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