Mathematics
Grand-Tests
Easy
Question
Which quadratic equation has exactly one distinct real solution?
- x2 + 2 = 0
- x2 + X = 0
- x2 + x +I= 0
- x2 + 2x + 1 = 0
The correct answer is: x2 + 2x + 1 = 0
One solution occurs when
b2 = 4ac = 0.
The only option that asrees to this is option (D).
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