Question

eu so presciso da b) pff me ajudem ​

Answer 1

a) $ab^{2}c + abd + b^{3}cd = b(abc+ ad + b^{2}cd)$

b) $a^3b^5c^2 + a^2b^8c^3d + 3ab^4c^9d = ab^4c^2(a^2b + ab^4cd + 3c^7d)$