Answer:
The simplest form would be:
8c² - 1.5d
Explanation:
To simplify an expression, we need to gather the like terms.
Like terms are the ones having the same variable raised to the same power
In the given expression:
6c² + 2.5d - d + 2c² - 3d
We have terms having c² and terms having d.
Therefore, we would gather them as follows:
6c² + 2.5d - d + 2c² - 3d
(6+2)c² + (2.5-1-3)d
8c² - 1.5d ......................> This is the simplest form
Hope this helps :)