|x^2-4x|=3

Lösung

x^{2} - 4 x = 3

x = 2 - 7 or x = 1 or x = 3 or x = 2 + 7

Dezimale

x = - 0.64575 \dots, x = 1, x = 3, x = 4.64575 \dots

Schritte zur Lösung

x^{2} - 4 x = 3

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

x^{2} - 4 x = - 3 or x^{2} - 4 x = 3

x^{2} - 4 x = - 3 or x^{2} - 4 x = 3

(x = 1 or x = 3) or (x = 2 - 7 or x = 2 + 7)

x = 2 - 7 or x = 1 or x = 3 or x = 2 + 7

∣ 2 x + 5 ∣ - 1 < 0

2 ∣ 2 x - 1 ∣ - 8 = 18

s im pl i f y \frac{8 x ^{7} y}{40 x ^{8} y ^{6}}

s im pl i f y - \frac{8}{2}

\frac{u}{- 4} \geq 10