Ecuacion 1 ``` 965 - 0. 15x² = 0 0. 15x² = 965 ``` Ecuación 2. 0. 15 ``` x² = 965 / 0. 15 x² = 19300/3 ``` Ecuación 3 ``` x = ±√(19300/3) x ≈ ±80. 21 ``` R. X ≈ 80. 21 and x ≈ -80. 21