Exercise algebra.equations.quadratic.no-abc
Description
solve a quadratic equation without abc-formula
Firsts
Rule quadraticequationstrategy.enter Location [] Term "Just (TCon relation1.eq [TCon arith1.plus [TCon arith1.times [TNum 8,TCon arith1.power [TVar \"x\",TNum 2]],TCon arith1.times [TNum 4,TVar \"x\"]],TCon arith1.minus [TCon arith1.power [TVar \"x\",TNum 2],TCon arith1.times [TNum 5,TVar \"x\"]]])" Focus "Just (TCon relation1.eq [TCon arith1.plus [TCon arith1.times [TNum 8,TCon arith1.power [TVar \"x\",TNum 2]],TCon arith1.times [TNum 4,TVar \"x\"]],TCon arith1.minus [TCon arith1.power [TVar \"x\",TNum 2],TCon arith1.times [TNum 5,TVar \"x\"]]])" Environment