📐 数学难度 5 — 🟢 Basiccubic👁 14 浏览次数⏱ 1 min read
Solve The equation x² - 8x + 15 = 0 has roots x₁, x₂. Find x₁ + x₂ and x₁·x₂ using ... — Step-by-Step Solution by AhaStep
📝 Problem
The equation x² - 8x + 15 = 0 has roots x₁, x₂. Find x₁ + x₂ and x₁·x₂ using Vieta's formulas.