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受欢迎的代数 >

h^2+22.4h=1837

解答

h^{2} + 22.4 h = 1837

解答

h = \frac{- 56 + 49061}{5}, h = - \frac{56 + 49061}{5}

+1

十进制

h = 33.09943 \dots, h = - 55.49943 \dots

求解步骤

h^{2} + 22.4 h = 1837

在两边乘以

10

10 h^{2} + 224 h = 18370

将

18370

para o lado esquerdo

10 h^{2} + 224 h - 18370 = 0

使用求根公式求解

h_{1, 2} = \frac{- 224 \pm 22 4 ^{2} - 4 \cdot 10 ( - 18370 )}{2 \cdot 10}

22 4^{2} - 4 \cdot 10 (- 18370) = 449061

h_{1, 2} = \frac{- 224 \pm 4 49061}{2 \cdot 10}

将解分隔开

h_{1} = \frac{- 224 + 4 49061}{2 \cdot 10}, h_{2} = \frac{- 224 - 4 49061}{2 \cdot 10}

h = \frac{- 224 + 4 49061}{2 \cdot 10} : \frac{- 56 + 49061}{5}

h = \frac{- 224 - 4 49061}{2 \cdot 10} : - \frac{56 + 49061}{5}

二次方程组的解是:

h = \frac{- 56 + 49061}{5}, h = - \frac{56 + 49061}{5}

作图

流行的例子

因式分解 216x^3-64

f a c t or 216 x^{3} - 64

因式分解 2b-16+24y

f a c t or 2 b - 16 + 24 y

1/2 (3-y)= 1/3 y+2

\frac{1}{2} (3 - y) = \frac{1}{3} y + 2

1 x^{2} - 1 x + 1 = 0

3 x - 5 = 7