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受欢迎的代数 >

|8-3s|= 9/2

解答

∣ 8 - 3 s ∣ = \frac{9}{2}

解答

s = \frac{7}{6} or s = \frac{25}{6}

+1

十进制

s = 1.16666 \dots, s = 4.16666 \dots

求解步骤

∣ 8 - 3 s ∣ = \frac{9}{2}

使用绝对值运算法则: 若

∣ u ∣ = a, a > 0

，则

u = a

or

u = - a

8 - 3 s = - \frac{9}{2} or 8 - 3 s = \frac{9}{2}

8 - 3 s = - \frac{9}{2} or 8 - 3 s = \frac{9}{2}

s = \frac{7}{6} or s = \frac{25}{6}

作图

流行的例子

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\frac{x ^{2} - 36}{x - 8} \leq 0

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