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vivianrush
Group Title
What is the number of real solutions?
6x^2 – 7x – 1 = 0
two solutions
cannot be determined
one solution
no real solutions
 2 years ago
 2 years ago
vivianrush Group Title
What is the number of real solutions? 6x^2 – 7x – 1 = 0 two solutions cannot be determined one solution no real solutions
 2 years ago
 2 years ago

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myininaya Group TitleBest ResponseYou've already chosen the best response.2
Find the discriminant. \[\text{ If you have } ax^2+bx+c=0 \text{ , then the discriminant is equal to } D= b^24ac .\] If D=0, then one real solution (with multiplicity 2) If D=negative real number, then no real solutions. If D=positive real number, then 2 real solutions.
 2 years ago

vivianrush Group TitleBest ResponseYou've already chosen the best response.0
I got a dismals and i think its A.
 2 years ago

vivianrush Group TitleBest ResponseYou've already chosen the best response.0
but i wanna make sure i got it right,im struggling with math
 2 years ago

myininaya Group TitleBest ResponseYou've already chosen the best response.2
I don't know what dismals mean but yes D would be a positive real number which implies 2 real solutions. You have a=6,b=7,c=1 You put these in the formula I gave above for the discriminant.
 2 years ago

tcarroll010 Group TitleBest ResponseYou've already chosen the best response.1
Tip: when "a" and "c" are of opposite signs, you will always have real solutions.
 2 years ago
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