Exercise algebra.equations.quadratic.no-abc
Description
solve a quadratic equation without abc-formula
Firsts
Rule algebra.equations.quadratic.distr-square Location [1,1] Term "Just (TCon relation1.eq [TNum 40,TCon arith1.plus [TCon arith1.minus [TCon arith1.plus [TCon arith1.plus [TCon arith1.plus [TCon arith1.times [TNum 9,TCon arith1.power [TVar \"x\",TNum 2]],TCon arith1.times [TNum 30,TVar \"x\"]],TNum 25],TCon arith1.power [TVar \"x\",TNum 2]],TCon arith1.times [TNum 10,TVar \"x\"]],TNum 25]])" Focus "Just (TNum 25)" Environment Rule algebra.equations.linear.flip Location [] Term "Just (TCon relation1.eq [TCon arith1.plus [TCon arith1.plus [TCon arith1.plus [TCon arith1.times [TNum 9,TCon arith1.power [TVar \"x\",TNum 2]],TCon arith1.times [TNum 30,TVar \"x\"]],TNum 25],TCon arith1.power [TCon arith1.minus [TVar \"x\",TNum 5],TNum 2]],TNum 40])" Focus "Just (TCon relation1.eq [TCon arith1.plus [TCon arith1.plus [TCon arith1.plus [TCon arith1.times [TNum 9,TCon arith1.power [TVar \"x\",TNum 2]],TCon arith1.times [TNum 30,TVar \"x\"]],TNum 25],TCon arith1.power [TCon arith1.minus [TVar \"x\",TNum 5],TNum 2]],TNum 40])" Environment