Answer:
The answer is
- 10y² + 7y - 10
Step-by-step explanation:
C = 3y² - 4y + 4
D = - 7y² + 3y - 6
To find D - C subtract C from D
That's
D - C = - 7y² + 3y - 6 - ( 3y² - 4y + 4)
Expand
We have
D - C = - 7y² + 3y - 6 - 3y² + 4y - 4
Group like terms
D - C = - 7y² - 3y² + 3y + 4y - 6 - 4
We have the final answer as
- 10y² + 7y - 10
Hope this helps you
