asked 135k views
2 votes
Ok, Find the difference.

(6x3 + 18x2) - 3x2 =

A. 21x2B. 21x3C. 3x3 + 15x2D. 6x3 + 15x2

asked
User TNC
by
8.4k points

2 Answers

3 votes

Answer:

D

Explanation:

answered
User Lmpeixoto
by
7.7k points
3 votes
(6x3 + 18x2) - 3x2 =
6x3 + (18x2 - 3x2) =
6x3 + 15x2

The correct answer is D. 6x3 + 15x2. This is so because you can only subtract numbers which have the same power, such as 18x2 and 3x2 in this case. 6x3 stays the same.
answered
User Nvirth
by
8.6k points
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