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受欢迎的代数 >

74/8 =9R^2

解答

\frac{74}{8} = 9 R^{2}

解答

R = \frac{37}{6}, R = - \frac{37}{6}

+1

十进制

R = 1.01379 \dots, R = - 1.01379 \dots

求解步骤

\frac{74}{8} = 9 R^{2}

交换两边

9 R^{2} = \frac{74}{8}

约分:

2

9 R^{2} = \frac{37}{4}

两边除以

9

R^{2} = \frac{37}{36}

对于

x^{2} = f (a)

解为

x = f (a), - f (a)

R = \frac{37}{36}, R = - \frac{37}{36}

\frac{37}{36} = \frac{37}{6}

- \frac{37}{36} = - \frac{37}{6}

R = \frac{37}{6}, R = - \frac{37}{6}

作图

流行的例子

\frac{2 x + 4}{6} - 2 = 4

化简 (14+2i)/(5+3i)

s im pl i f y \frac{14 + 2 i}{5 + 3 i}

u^{2} - 10 u + 24 = 0

2 y^{2} - 6 y - 8 = 0

k^{2} - 13 k + 40 = 0