[tex]\huge\mathbb{ \underline{ANSWER:}}[/tex]
[tex] x_{ _{1} } + x_{2} = \frac{ - b + \sqrt{ {b}^{2} - 4ac } }{2a} + \frac{ - b - \sqrt{ {b}^{2} - 4a } }{2a} [/tex][tex] x_{1} + x_{2} = \frac{ - b + \sqrt{ {b}^{2} - ac \: - b - \sqrt{ {b }^{2} - 4ac } } }{2a} [/tex][tex] x_{1} + x_{2} = \frac{ - 2b}{2a} [/tex][tex]\implies[/tex][tex] x_{1} + x_{2} = \frac{ - b}{a} [/tex]
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the sum of the roots of quadratic equation [tex] \frac{ - b}{a} [/tex]
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[tex]\colorbox{lightyellow}{CarryOnLearning}[/tex]