Exercise algebra.inequalities.quadratic
Description
solve a quadratic inequation
Firsts
Rule algebra.equations.quadratic.simpler-poly Location [] Term "Just (TCon relation1.eq [TCon arith1.minus [TCon arith1.minus [TCon arith1.power [TVar \"x\",TNum 2],TCon arith1.times [TNum 3,TVar \"x\"]],TNum 18],TNum 0])" Focus "Just (TCon relation1.eq [TCon arith1.minus [TCon arith1.minus [TCon arith1.power [TVar \"x\",TNum 2],TCon arith1.times [TNum 3,TVar \"x\"]],TNum 18],TNum 0])" Environment Rule algebra.equations.quadratic.nice-factors Location [] Term "Just (TCon relation1.eq [TCon arith1.times [TCon arith1.plus [TVar \"x\",TNum 3],TCon arith1.minus [TVar \"x\",TNum 6]],TNum 0])" Focus "Just (TCon relation1.eq [TCon arith1.times [TCon arith1.plus [TVar \"x\",TNum 3],TCon arith1.minus [TVar \"x\",TNum 6]],TNum 0])" Environment Rule algebra.equations.quadratic.abc Location [] Term "Just (TCon logic1.or [TCon relation1.eq [TVar \"x\",TCon arith1.unary_minus [TNum 3]],TCon relation1.eq [TVar \"x\",TNum 6]])" Focus "Just (TCon logic1.or [TCon relation1.eq [TVar \"x\",TCon arith1.unary_minus [TNum 3]],TCon relation1.eq [TVar \"x\",TNum 6]])" Environment