Exercise algebra.equations.quadratic.no-abc
Description
solve a quadratic equation without abc-formula
Firsts
Rule algebra.equations.coverup.times Location [0] Term "Just (TCon logic1.or [TCon relation1.eq [TCon arith1.divide [TCon arith1.plus [TCon arith1.unary_minus [TNum 3],TCon arith1.root [TNum 6,TNum 2]],TNum 2],TVar \"x\"],TCon relation1.eq [TCon arith1.unary_minus [TCon arith1.root [TNum 6,TNum 2]],TCon arith1.plus [TCon arith1.times [TNum 2,TVar \"x\"],TNum 3]]])" Focus "Just (TCon relation1.eq [TCon arith1.divide [TCon arith1.plus [TCon arith1.unary_minus [TNum 3],TCon arith1.root [TNum 6,TNum 2]],TNum 2],TVar \"x\"])" Environment Rule algebra.equations.coverup.onevar.plus Location [1] Term "Just (TCon logic1.or [TCon relation1.eq [TCon arith1.plus [TCon arith1.unary_minus [TNum 3],TCon arith1.root [TNum 6,TNum 2]],TCon arith1.times [TNum 2,TVar \"x\"]],TCon relation1.eq [TCon arith1.minus [TCon arith1.unary_minus [TNum 3],TCon arith1.root [TNum 6,TNum 2]],TCon arith1.times [TNum 2,TVar \"x\"]]])" Focus "Just (TCon relation1.eq [TCon arith1.minus [TCon arith1.unary_minus [TNum 3],TCon arith1.root [TNum 6,TNum 2]],TCon arith1.times [TNum 2,TVar \"x\"]])" Environment