化简 |5-7|

解答

化简

∣ 5 - 7 ∣

2

求解步骤

∣ 5 - 7 ∣

数字相减:

5 - 7 = - 2

= ∣ - 2 ∣

使用绝对值运算法则:

∣ - a ∣ = a, a > 0

= 2

s im pl i f y (x^{3} y^{2})^{4}

f a c t or 5 x^{2} + 50 x + 125

3 (x - 4) < 2 x

\frac{z + 4}{3} = \frac{z + 6}{4}

7 x - 4 = 3 x