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Please help me with this hw

Please help me with this hw-example-1
User Davidhadas
by
8.3k points

2 Answers

4 votes

========
\huge{\bf{ Answer : }} ========


\bold{ \underline{Given : -}}


  • \sf4 {x}^(2) + 100 = 0


\:


\bold{ \underline{To \: Find : - }}

  • find x!


\:


\bold{ \underline{Solution : - }}


\sf \longmapsto4 {x}^(2) + 100 = 0


\sf \longmapsto4 {x}^(2) = - 100


\sf \longmapsto {x}^(2) = - 100 / 4


\sf \longmapsto x = √( - 25)


\sf \longmapsto \boxed{ \bold{ \red{x = -5i \: \: or \: \: x = 5i}}}


\:


\bold{ \underline{ \: Conclusion : -}}


  • \rm x = - 5i \: \: or \: \: x = 5i \: \to(c.)


\:

I hope this helps!

User Thomas Hetzer
by
7.3k points
1 vote


▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪

Let's solve ~


  • \sf{4x {}^(2) + 100 = 0 }


  • \sf 4{x}^(2) = - 100


  • \sf {x}^(2) = - 100 / 4


  • \sf{x}^(2) = - 25


  • \sf{x = √( - 25) }


  • \sf \sqrt{ {i}^(2) * 25}


  • \sf \pm5i

The Correct choice is ~ C

User Friendly Crook
by
7.7k points

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