Answer:
5 u^2 + -6 thus the answer is D.
Step-by-step explanation:
Simplify the following:
-(-5 u^2 + 9) + 3
Factor -1 out of 9 - 5 u^2:
3 - -(5 u^2 - 9)
(-1)^2 = 1:
5 u^2 - 9 + 3
Grouping like terms, 5 u^2 - 9 + 3 = 5 u^2 + (3 - 9):
5 u^2 + (3 - 9)
3 - 9 = -6:
Answer: 5 u^2 + -6
