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son4ous [18]
3 years ago
14

what are the solutions of the equations x^2+14x=-130? (1point) a.2,-16 b.10,-13 c.-2,16 d.no solution

Mathematics
1 answer:
likoan [24]3 years ago
5 0
x^2+14x=-130\\
x^2+14x+49=-81\\
(x+7)^2=-81

no solutions in \mathbb{R}

in \mathbb{C}
x+7=-\sqrt{-81} \vee x+7=\sqrt{-81}\\
x=-7-\sqrt{-81} \vee x=-7+\sqrt{-81}\\
x=-7-9i \vee x=-7+9i\\
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