Answer:
2
Step-by-step explanation:
∪ means the whole numbers which is found in them
B and C have the numbers, 3,7, 6, 9, 2, 5
so, B∪C={2, 3, 5, 6, 7, 9)
can i have brainliest if it helped : )
y = ( x + 2)( x + 6)