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13-09-2019
Mathematics

contestada

simplify 16z^3 +(-21z^3)

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cutiecatdumplin cutiecatdumplin

17-09-2019

Answer:

-5z^3

Step-by-step explanation:

1. Positive and negative signs cancel out and the sign would just be minus.

2. Since the z^3 is the same in both 16z^3 and 21^3, you can just add or subtract what you need to.

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