# RetractSolvePackage(Q, R)ΒΆ

- Q: IntegralDomain
- R: Join(IntegralDomain, RetractableTo Q)

RetractSolvePackage is an interface to SystemSolvePackage that attempts to retract the coefficients of the equations before solving.

- solveRetract: (List Polynomial R, List Symbol) -> List List Equation Fraction Polynomial R
`solveRetract(lp, lv)`

finds the solutions of the list`lp`

of rational functions with respect to the list of symbols`lv`

. The function tries to retract all the coefficients of the equations to`Q`

before solving if possible.