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.times [TNum 2,TCon arith1.plus [TVar \"x\",TNum 4]],TCon arith1.power [TCon arith1.minus [TVar \"x\",TCon arith1.divide [TNum 7,TNum 2]],TNum 2]])" Focus "Just (TCon relation1.eq [TCon arith1.times [TNum 2,TCon arith1.plus [TVar \"x\",TNum 4]],TCon arith1.power [TCon arith1.minus [TVar \"x\",TCon arith1.divide [TNum 7,TNum 2]],TNum 2]])" Environment