|x+36|=5x

解答

∣ x + 36 ∣ = 5 x

x = 9

求解步骤

∣ x + 36 ∣ = 5 x

找到正负区间

x < - 36, x \geq - 36

对每个区间解不等式

无解 or x = 9

x = 9

s im pl i f y \frac{n}{2} \cdot \frac{n}{2}

(x - 1) (x + 1) - (x - 3)^{2} \leq 3

2 \geq - 3 - 3 x \geq - 7

s im pl i f y \frac{- 14 + 22 i}{- 2 - 4 i}

6 r^{2} + 3 r - 3 = 0