y=u+2/u ,u=(2x+1)^3,x=0

解

y = u + \frac{2}{u}, u = (2 x + 1)^{3}, x = 0

(u = 1, x = 0, y = 3)

解答ステップ

y = u + \frac{2}{u} u = (2 x + 1)^{3} x = 0

以下のために

y

を分離:

y = u + \frac{2}{u} : y = u + \frac{2}{u}

equation系を解く:

u = (2 x + 1)^{3}, x = 0 : (u = 1, x = 0)

元のequationに当てはめて解を検算する

ゆえに,

y = u + \frac{2}{u}, u = (2 x + 1)^{3}, x = 0

の最終的な解は

(u = 1, x = 0, y = 3)