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.times [TVar \"x\",TCon arith1.plus [TCon arith1.times [TNum 7,TVar \"x\"],TNum 9]],TNum 0])" Focus "Just (TCon relation1.eq [TCon arith1.times [TVar \"x\",TCon arith1.plus [TCon arith1.times [TNum 7,TVar \"x\"],TNum 9]],TNum 0])" Environment