Exercise algebra.equations.quadratic.no-abc
Description
solve a quadratic equation without abc-formula
Firsts
Rule topform.exit Location [] Term "Just (TCon relation1.eq [TNum 40,TCon arith1.unary_minus [TCon arith1.times [TNum 20,TVar \"x\"]]])" Focus "Just (TCon relation1.eq [TNum 40,TCon arith1.unary_minus [TCon arith1.times [TNum 20,TVar \"x\"]]])" Environment