Exercise algebra.equations.quadratic.no-abc
Description
solve a quadratic equation without abc-formula
Firsts
Rule algebra.equations.linear.flip Location [0] Term "Just (TCon logic1.or [TCon relation1.eq [TVar \"x\",TCon arith1.root [TNum 7,TNum 2]],TCon relation1.eq [TCon arith1.unary_minus [TCon arith1.root [TNum 7,TNum 2]],TVar \"x\"]])" Focus "Just (TCon relation1.eq [TVar \"x\",TCon arith1.root [TNum 7,TNum 2]])" Environment Rule algebra.equations.linear.flip Location [1] Term "Just (TCon logic1.or [TCon relation1.eq [TCon arith1.root [TNum 7,TNum 2],TVar \"x\"],TCon relation1.eq [TVar \"x\",TCon arith1.unary_minus [TCon arith1.root [TNum 7,TNum 2]]]])" Focus "Just (TCon relation1.eq [TVar \"x\",TCon arith1.unary_minus [TCon arith1.root [TNum 7,TNum 2]]])" Environment