CrystalChubs CrystalChubs 13-03-2017 Mathematics contestada Factor the GCF: 28a^3b^4 + 20a^2b^2 − 16ab^3. A. 4ab(7a2b + 5a − 4b2) B. 4ab2(7a2b + 5a − 4b) C. 4ab2(7a2b2 + 5a − 4b) D. 4ab(7a2b3 + 5a − 4b)