BLUFF for Not.
20
Determine whether each of the following is a poly
1. y = 5x - 4
2. y = x2 - 3x + 2
3. y=-4x-3 + 5x - 7
4. y = (x - 2)2 (3x + 1)
5. y = 3x4 - 4x3 + 3x2 - 4x +
6. y -- 20x58
7. y = 3x3 - 6
8. y = x3 - 4x2+ V* - 1
9. y = x5 - 4x4 + 3x3 - 2x + 10

10. y = 5x3 - 2x2 ++1
11. y = 3x6 - 4x + 7
12. y = (x-2)- (x + 5)​