Hopes this helps
I used this app called Cymath.
Answer:
Answer:
-4y^2 - 2y + 10
Step-by-step explanation:
Use Photomath for the answers :)
Its C because both 5x and 2x have the same x at the end and their both considered like terms. so the answer would be C and if it was to be solved 5x+2x= 7x and 7+7x would be the final answer. since the 7 with no x has no x, it wouldnt have to be solved or simplified