Question

2x^2+10x+20=0. Find roots of the equation?

Answer 1

Step-by-step explanation:

$2 {x}^{2} + 10x + 20 = 0 \\ \\ {x}^{2} + 5x + 10 = 0 \\ \\ x = \frac{ - 5 + \sqrt{25 - 40} }{2} \\ \\ = \frac{ - 5 + i\sqrt{15} }{2} . \: \: \: or \: \: \: \: \frac{ - 5 - i\sqrt{15} }{2} .$

Answer 2

Answer:

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