Exercise algebra.equations.quadratic.no-abc
Description
solve a quadratic equation without abc-formula
Firsts
Rule navigator.down Location [0] Term "Just (TCon relation1.eq [TCon arith1.power [TCon arith1.minus [TNum 1,TVar \"x\"],TNum 2],TCon arith1.plus [TVar \"x\",TNum 2]])" Focus "Just (TCon arith1.power [TCon arith1.minus [TNum 1,TVar \"x\"],TNum 2])" Environment