Exercise algebra.equations.quadratic.no-abc
Description
solve a quadratic equation without abc-formula
Firsts
Rule generalform.exit Location [] Term "Just (TCon relation1.eq [TCon arith1.plus [TCon arith1.power [TVar \"x\",TNum 2],TCon arith1.times [TCon arith1.divide [TNum 9,TNum 7],TVar \"x\"]],TNum 0])" Focus "Just (TCon relation1.eq [TCon arith1.plus [TCon arith1.power [TVar \"x\",TNum 2],TCon arith1.times [TCon arith1.divide [TNum 9,TNum 7],TVar \"x\"]],TNum 0])" Environment