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受欢迎的代数 >

2t^2+4t-6=-3t

解答

2 t^{2} + 4 t - 6 = - 3 t

解答

t = \frac{- 7 + 97}{4}, t = \frac{- 7 - 97}{4}

+1

十进制

t = 0.71221 \dots, t = - 4.21221 \dots

求解步骤

2 t^{2} + 4 t - 6 = - 3 t

将

3 t

para o lado esquerdo

2 t^{2} + 7 t - 6 = 0

使用求根公式求解

t_{1, 2} = \frac{- 7 \pm 7 ^{2} - 4 \cdot 2 ( - 6 )}{2 \cdot 2}

7^{2} - 4 \cdot 2 (- 6) = 97

t_{1, 2} = \frac{- 7 \pm 97}{2 \cdot 2}

将解分隔开

t_{1} = \frac{- 7 + 97}{2 \cdot 2}, t_{2} = \frac{- 7 - 97}{2 \cdot 2}

t = \frac{- 7 + 97}{2 \cdot 2} : \frac{- 7 + 97}{4}

t = \frac{- 7 - 97}{2 \cdot 2} : \frac{- 7 - 97}{4}

二次方程组的解是:

t = \frac{- 7 + 97}{4}, t = \frac{- 7 - 97}{4}

作图

流行的例子

0.57x^2+0.41x-0.87=0

0.57 x^{2} + 0.41 x - 0.87 = 0

-37x+827=0.32x^2+200

- 37 x + 827 = 0.32 x^{2} + 200

2 x^{2} + x - 4 = - 6 x - 7

- x^{2} + 6 x = x

3 (2 b + 3)^{2} = 36