Mathematics
The roots of quadratic equation x2 - 1 = 0 are :
0
1
-1
±1
Quadratic Equations
ICSE Sp 2025
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Answer
Solving,
⇒ x2 - 1 = 0
⇒ (x + 1)(x - 1) = 0
⇒ x + 1 = 0 or x - 1 = 0
⇒ x = -1 or x = 1.
Hence, Option 4 is the correct option.
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