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\",TNum 11],TCon relation1.eq [TVar \"x\",TCon arith1.unary_minus [TNum 9]]])" Focus "Just (TCon relation1.eq [TVar \"x\",TNum 11])" Environment