For the quadratic equation: x2+4x+5 = 0, the sum of the roots is .
A
-4
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B
4
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C
5
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D
-5
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Solution
The correct option is A -4 For a quadratic equation given by ax2+bx+c=0, the sum of the roots is given by −ba.
Here, a = 1, b = 4, c = 5.
Hence, the sum of the roots = −ba = −41 = -4.