soulxyulanaldo soulxyulanaldo

11-10-2016
Mathematics

Answered

3(2x 4y - 2z) 7(x y - 4z)

A13x 5y - 22z
B-x - 19y 22z
C13x 19y - 34z
D-x - 5y 34z

Verified Answer :

nobillionaireNobley nobillionaireNobley

12-10-2016

3(2x + 4y - 2z) + 7(x + y - 4z) = 6x + 12y - 6z + 7x + 7y - 28z = 13x + 19y - 34z

Option c is the correct answer.

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