9
5
1
2
Correct answer is C
0 ≥ x ≥ 2 → 0, 1, 2
If x = 0, 91+2x2
91+2(0)2 = 91
= 3
If x = 2, 91+2(1)2
= 93
= 3
If x = 2, 91+2(2)2
= 99
= 1
The least value of 91+2x2 is 1 when x = 2
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