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Kagome_gurl8
Group Title
Use the Quadratic Formula to solve the equation.
–x2 – x – 5 = 0
 one year ago
 one year ago
Kagome_gurl8 Group Title
Use the Quadratic Formula to solve the equation. –x2 – x – 5 = 0
 one year ago
 one year ago

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Kagome_gurl8 Group TitleBest ResponseYou've already chosen the best response.1
@Hero
 one year ago

Kagome_gurl8 Group TitleBest ResponseYou've already chosen the best response.1
x^2*
 one year ago

Hero Group TitleBest ResponseYou've already chosen the best response.1
\[–x^2 – x – 5 = 0\] 1st I would factor out 1: \[(x^2 + x + 5) = 0\] Then divide both sides by 1 \[x^2 + x + 5 = 0\] Now I would use quadratic formula: \[x = \frac{b \pm \sqrt{b^2  4ac}}{2a}\] a = 1, b = 1, c = 5
 one year ago

Kagome_gurl8 Group TitleBest ResponseYou've already chosen the best response.1
Oh, thank you very much :)
 one year ago

Hero Group TitleBest ResponseYou've already chosen the best response.1
Well, actually, hang on
 one year ago

Hero Group TitleBest ResponseYou've already chosen the best response.1
When in doubt, compute the discriminant to see if this is even has any real solution
 one year ago

Hero Group TitleBest ResponseYou've already chosen the best response.1
b^2  4ac = (1)^2  4(1)(5) = 1  20 = 19 No real solution
 one year ago

Kagome_gurl8 Group TitleBest ResponseYou've already chosen the best response.1
Thats what i got also, i wanted to make sure i was doing it right. :)
 one year ago
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