Answer:
x = 4
Explanation:
2x + 1 ≥ 0
2x ≥ -1
2/2 x ≥ -1/2
x ≥ -1/2
√(2x+1)² = (4-1)²
2x + 1 = 3²
2x = 9 - 1
2x = 8
2/2 x = 8/2
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