|-4x-3|=2

解

∣ - 4 x - 3 ∣ = 2

x = - \frac{5}{4} or x = - \frac{1}{4}

十進法表記

x = - 1.25, x = - 0.25

解答ステップ

∣ - 4 x - 3 ∣ = 2

絶対規則を適用する:

∣ u ∣ = a, a > 0

の場合は

u = a

u = - a

- 4 x - 3 = - 2 or - 4 x - 3 = 2

- 4 x - 3 = - 2 or - 4 x - 3 = 2

x = - \frac{5}{4} or x = - \frac{1}{4}