Exercise algebra.equations.quadratic.no-abc
Description
solve a quadratic equation without abc-formula
Firsts
Rule constantform.enter Location [] Term "Just (TCon relation1.eq [TNum 2,TCon arith1.times [TCon arith1.divide [TNum 1,TNum 4],TCon arith1.minus [TNum 17,TCon arith1.power [TVar \"x\",TNum 2]]]])" Focus "Just (TCon relation1.eq [TNum 2,TCon arith1.times [TCon arith1.divide [TNum 1,TNum 4],TCon arith1.minus [TNum 17,TCon arith1.power [TVar \"x\",TNum 2]]]])" Environment