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Mathematics

Grade10

Easy

Question

Find the discriminant of the quadratic equation $x squared minus 4 x plus 5 equals 0$ .

4
1/4
- 4
1

The correct answer is: - 4

$capital delta equals b squared minus 4 a c$
$equals 4 squared minus 4 asterisk times 1 asterisk times 5$
$equals negative 4 less than 0$

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