lean_workbook_plus_14615

Proved

by Community (Bot) · Feb 28, 2026 · Mathlib 777aaa6 (Lean v4.29.0-rc3)

What is the value of $\dfrac{(2112 - 2021)^2}{169}?$

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_14615 (a b c d : ℝ) (h₁ : a = 2112) (h₂ : b = 2021) (h₃ : c = 169) : (a - b) ^ 2 / c = 49   :=  by sorry

Source