|3-2x^2|=3

解

3 - 2 x^{2} = 3

x = - 3 or x = 0 or x = 3

十進法表記

x = - 1.73205 \dots, x = 0, x = 1.73205 \dots

解答ステップ

3 - 2 x^{2} = 3

絶対規則を適用する:

∣ u ∣ = a, a > 0

の場合は

u = a

u = - a

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

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

(x = - 3 or x = 3) or x = 0

x = - 3 or x = 0 or x = 3