lean_workbook_plus_23339

Proved

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

Given that real numbers $a, b$ satisfy the following\n $a^3-3a^2+5a-17=0$ \nb^3-3b^2+5b+11=0 $\nFind the value of$ a+b$

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_23339 (a b : ℝ) (ha : a^3 - 3*a^2 + 5*a - 17 = 0) (hb : b^3 - 3*b^2 + 5*b + 11 = 0) : a + b = 2   :=  by sorry

Source