Exercise algebra.equations.quadratic.no-abc
Description
solve a quadratic equation without abc-formula
Firsts
Rule quadraticequationstrategy.enter Location [0] Term "Just (TCon logic1.or [TCon relation1.eq [TCon arith1.divide [TCon arith1.plus [TCon arith1.unary_minus [TNum 4],TCon arith1.times [TNum 4,TCon arith1.root [TNum 2,TNum 2]]],TNum 2],TVar \"x\"],TCon relation1.eq [TVar \"x\",TCon arith1.divide [TCon arith1.minus [TCon arith1.unary_minus [TNum 4],TCon arith1.root [TNum 32,TNum 2]],TNum 2]]])" Focus "Just (TCon relation1.eq [TCon arith1.divide [TCon arith1.plus [TCon arith1.unary_minus [TNum 4],TCon arith1.times [TNum 4,TCon arith1.root [TNum 2,TNum 2]]],TNum 2],TVar \"x\"])" Environment