November 2019 1 51 Report
A expressão algébrica 4x+ xy 42x²zy² com x≠0, y≠0, z≠0, equivale a:
_____ - _______
4y+ y² 63zxy³


A) 0.

B) 12xy
___
7z

C) 7x
- __
6y

D) x
__
3y
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