Answer:
before you asked this question did you look it up
Step-by-step explanation:
the given sets are,
D= {4,7,9} , let E {4,6,7,8}, and let F={3,5,6,7,9}
now,
D U E = { 4 , 6, 7 , 8, 9}
and'
E intersection F = E n F = {6 , 7)
thus, the answer is
D U E = { 4 , 6, 7 , 8, 9} and
E n F = {6 , 7)
the answer is a
step by step explanation
Combine common terms
(3x²+5x²)+(7x-4x)+(-5+11)
8x²+3x+6