Gari Delgado

Useful symbols (please copy and paste as needed): ≡ ≈ ≅ ≠ ≤ ≥ · ~ ± ∓ ∤ ◅∈ ∉ ⊆ ⊂ ∪ ∩ ⊥ ô ░░░░ ∫ Σ → ↓ ∞ Π Δ Φ Ψ Ω Γ ∮ ∇∂ √ ∅ ° ϴ • ÷ ♦ α β γ δ ε ζ η θ ι κ λ μ ν ξ ο π ρ σ τ υ φ χ ψ ω ⁰ ¹ ² ³ ⁴ ⁵ ⁶ ⁷ ⁸ ⁹ ⁺ ⁻ ⁿ ₀ ₁ ₂ ₃ ₄ ₅ ₆ ₇ ₈ ₉ ₊ ₋ ⅓ ⅔ ⅕ ⅖ ⅗ ⅘ ⅙ ⅚ ⅛ ⅜ ⅝ ⅞ solve "x" using quadratic formula: x = [-b ± √(b² - 4ac)]/2a where: a = b = c = http://library.wolfram.com/webMathematica/Education/LongDivide.jsp http://www.wolframalpha.com/ http://factoring-calculator.net/ https://www.desmos.com/calculator http://www.basic-mathematics.com/reduce-fractions-calculator.html