madelinegrey99 madelinegrey99 24-03-2017 Mathematics contestada Factor out the GCF for 21x^3y^2 - 7x^2y + 42xy Select one: a. 7x^2y + 42xy b. 7x^2y(3xy - 1 + 6) c. 7xy(3x^2y - x + 6) d. 7(3x^3y^2 - x^2y + 6xy)
