|((x-3))/4 |^2= 9/4

解答

\frac{( x - 3 )}{4}^{2} = \frac{9}{4}

x = - 3 or x = 9

求解步骤

\frac{x - 3}{4}^{2} = \frac{9}{4}

找到正负区间

x < 3, x \geq 3

对每个区间解不等式

x = - 3 or x = 9

4 x (x - 3) - 5 ∣ 2 x - 3 ∣ + 13 = 0

(8) ∣ 2 x - 3 ∣ = ∣ 3 x + 5 ∣

∣ 4 x - 1 ∣ + ∣ 4 x + 5 ∣ = 1

∣ 10 - 3 x ∣ = ∣ 5 - 2 x ∣

∣ x ∣ + 2 ∣ x + 1 ∣ - 3 ∣ x - 2 ∣ = 4