B = {a, b, c, d}
C = {0, a, 2, b}
B ∪ C = {a, b, c, d, 0, 2}
Everything from the set B and everything from the set C give to one set. Duplicated elements are written only once.
Answer:
Step-by-step explanation:
1.B
2.C
3.D
4.A
b
Answer: 4x² + 5x + 3
<u>Step-by-step explanation:</u>
