(2z-7y)³=.............
Answers
Answered by
0
Step-by-step explanation:
given, (x−3y−2z+5x+7y−z)+(−7x−2y+4z)
=(6x+4y−3z)+(−7x−2y+4z)
=6x+4y−3z−7x−2y+4z
=−x−2y+z
Answered by
5
Answer:
use the identity (a-b)³= a³-b³-3a²b+3ab²
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