lean_workbook_plus_67641

Proved

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

Given $f(x) = x^3 + 7x^2 + 9x + 10$ , find $f(2)$ and $f(3)$ .

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_67641 (f : ℝ → ℝ) (f_def : ∀ x, f x = x^3 + 7 * x^2 + 9 * x + 10) : f 2 = 64 ∧ f 3 = 127   :=  by sorry

Source