mata8deepollor mata8deepollor
  • 23-11-2016
  • Mathematics
contestada

ok, Find the difference.

(6x3 + 18x2) - 3x2 =

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

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Greenleafable
Greenleafable Greenleafable
  • 01-12-2016
(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. 
Answer Link
poopscooter352
poopscooter352 poopscooter352
  • 11-09-2019

Answer:

D

Step-by-step explanation:

Answer Link

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