Sagot :
Answer:
(6x-7y+9z)³
Step-by-step explanation:
ANSWER: 216x³-343y³+729z³
i hope its help
216x3(<cube) − 756x2(<squared)y + 972x2(<squared)z + 882xy2(<squared) − 2268xyz + 1458xz2(<squared) − 343y3(<cube) + 1323y2(<squared)z − 1701yz2(<squared) + 729z3(<cube)