Exercise algebra.equations.quadratic.no-abc
Description
solve a quadratic equation without abc-formula
Firsts
Rule algebra.equations.linear.distr-times Location [] Term "Just (TCon relation1.eq [TNum 0,TCon arith1.minus [TCon arith1.minus [TCon arith1.minus [TCon arith1.minus [TCon arith1.times [TNum 2,TCon arith1.power [TVar \"x\",TNum 2]],TCon arith1.times [TNum 6,TVar \"x\"]],TCon arith1.power [TVar \"x\",TNum 2]],TCon arith1.times [TNum 8,TVar \"x\"]],TNum 15]])" Focus "Just (TCon relation1.eq [TNum 0,TCon arith1.minus [TCon arith1.minus [TCon arith1.minus [TCon arith1.minus [TCon arith1.times [TNum 2,TCon arith1.power [TVar \"x\",TNum 2]],TCon arith1.times [TNum 6,TVar \"x\"]],TCon arith1.power [TVar \"x\",TNum 2]],TCon arith1.times [TNum 8,TVar \"x\"]],TNum 15]])" Environment Rule algebra.equations.linear.flip Location [] Term "Just (TCon relation1.eq [TCon arith1.minus [TCon arith1.minus [TCon arith1.times [TCon arith1.times [TNum 2,TVar \"x\"],TCon arith1.minus [TVar \"x\",TNum 3]],TCon arith1.times [TCon arith1.plus [TVar \"x\",TNum 2],TCon arith1.plus [TVar \"x\",TNum 6]]],TNum 3],TNum 0])" Focus "Just (TCon relation1.eq [TCon arith1.minus [TCon arith1.minus [TCon arith1.times [TCon arith1.times [TNum 2,TVar \"x\"],TCon arith1.minus [TVar \"x\",TNum 3]],TCon arith1.times [TCon arith1.plus [TVar \"x\",TNum 2],TCon arith1.plus [TVar \"x\",TNum 6]]],TNum 3],TNum 0])" Environment