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HighlyEducated87
Group Title
Find the constant k so that the quadratic equation 2x^2 + 5x  k = 0 has two real solutions?
 one year ago
 one year ago
HighlyEducated87 Group Title
Find the constant k so that the quadratic equation 2x^2 + 5x  k = 0 has two real solutions?
 one year ago
 one year ago

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terenzreignz Group TitleBest ResponseYou've already chosen the best response.0
Quadratic Formula!!! :D
 one year ago

aroub Group TitleBest ResponseYou've already chosen the best response.2
First you find the delta: b^24ac 5^24(2)(k) 25+8k because it has two real solutions..so, 25+8k>0 8k>25 k>25/8
 one year ago

HighlyEducated87 Group TitleBest ResponseYou've already chosen the best response.0
Good Job u got it 1st!!!!!
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.0
\[\frac{b \pm \sqrt{b^{2}4ac}}{2a}\] Yeah, as per @aroub delta (I thought it was discriminant) determines the number of roots you have, as well as their nature... Delta is that expression in the radical in the quadratic formula :D
 one year ago

HighlyEducated87 Group TitleBest ResponseYou've already chosen the best response.0
It is discriminant but i didn't need a quadratic formula.
 one year ago

aroub Group TitleBest ResponseYou've already chosen the best response.2
When you want to find K, no need!
 one year ago

HighlyEducated87 Group TitleBest ResponseYou've already chosen the best response.0
i know!!! Thanks
 one year ago

aroub Group TitleBest ResponseYou've already chosen the best response.2
No problem!!
 one year ago
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