Step-by-step explanation:
The answer is C.
Answer:
∈
Step-by-step explanation:
∈ symbol indicates the data set on the left side is fully included in the data set on the right side
Answer:
2x² + 23
Step-by-step explanation:
Distribute the -5 and combine like terms.
7x² + 3 - 5(x² - 4) =
= 7x² + 3 - 5x² + 20
= 2x² + 23