soulxyulanaldo soulxyulanaldo

11-10-2016
Mathematics

contestada

3(2x 4y - 2z) 7(x y - 4z)
a. 13x 5y - 22z
b. -x - 19y 22z
c. 13x 19y - 34z
d. -x - 5y 34z

Respuesta :

nobillionaireNobley nobillionaireNobley

13-10-2016

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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