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.minus [TCon arith1.unary_minus [TCon arith1.times [TVar \"x\",TCon arith1.plus [TCon arith1.times [TNum 2,TVar \"x\"],TNum 10]]],TCon arith1.times [TNum 2,TCon arith1.minus [TNum 10,TCon arith1.power [TVar \"x\",TNum 2]]]],TNum 0])" Focus "Just (TCon relation1.eq [TCon arith1.minus [TCon arith1.unary_minus [TCon arith1.times [TVar \"x\",TCon arith1.plus [TCon arith1.times [TNum 2,TVar \"x\"],TNum 10]]],TCon arith1.times [TNum 2,TCon arith1.minus [TNum 10,TCon arith1.power [TVar \"x\",TNum 2]]]],TNum 0])" Environment