Exercise algebra.equations.quadratic.no-abc
Description
solve a quadratic equation without abc-formula
Firsts
Rule generalform.enter Location [] Term "Just (TCon relation1.eq [TNum 7,TCon arith1.power [TCon arith1.plus [TNum 7,TCon arith1.times [TNum 2,TVar \"x\"]],TNum 2]])" Focus "Just (TCon relation1.eq [TNum 7,TCon arith1.power [TCon arith1.plus [TNum 7,TCon arith1.times [TNum 2,TVar \"x\"]],TNum 2]])" Environment