Exercise algebra.equations.quadratic.no-abc
Description
solve a quadratic equation without abc-formula
Firsts
Rule algebra.equations.coverup.power Location [] Term "Just (TCon logic1.or [TCon relation1.eq [TVar \"x\",TCon arith1.root [TNum 12,TNum 2]],TCon relation1.eq [TVar \"x\",TCon arith1.unary_minus [TCon arith1.root [TNum 12,TNum 2]]]])" Focus "Just (TCon logic1.or [TCon relation1.eq [TVar \"x\",TCon arith1.root [TNum 12,TNum 2]],TCon relation1.eq [TVar \"x\",TCon arith1.unary_minus [TCon arith1.root [TNum 12,TNum 2]]]])" Environment