Find the number of real number solutions for the equation.
x2 + 0x − 1 = 0
0
2
1

Answer:
x = ±1
Step-by-step explanation:
x² + 0x -1 = 0
x²- 1 = 0
x² = 1
x = ±1
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check
1² + 0x - 1 = 0
1 - 1 = 0