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jayda
 3 years ago
Evaluate the discriminant of 25x2 + 350x + 49 = 0. Tell how many solutions the equation has and whether the solutions are real or imaginary.
A.
one real solution
B.
two imaginary solutions
C.
two real solutions
D.
cannot be determined
jayda
 3 years ago
Evaluate the discriminant of 25x2 + 350x + 49 = 0. Tell how many solutions the equation has and whether the solutions are real or imaginary. A. one real solution B. two imaginary solutions C. two real solutions D. cannot be determined

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jayda
 3 years ago
Best ResponseYou've already chosen the best response.0i honestly dont have a clue! ha

NotTim
 3 years ago
Best ResponseYou've already chosen the best response.1oh shoot i forgot too. wats discriminant

binarymimic
 3 years ago
Best ResponseYou've already chosen the best response.0\[x = \frac{ b \pm \sqrt{b^{2}  4ac} }{ 2a }\] the discriminant is \[\sqrt{b^{2}  4ac}\] because it can be used to discriminate between solutions.

NotTim
 3 years ago
Best ResponseYou've already chosen the best response.1oh. that's relatively simple then. Here's a hint: ax^2bxc=0 (minus sign is just there; it doesn't matter). works in conjunction with binarymimic's comment.

AccessDenied
 3 years ago
Best ResponseYou've already chosen the best response.0The discriminant is actually a bit simpler, it's the radicand of that expression: \(b^2  4ac\) It is useful because the sign on it tells us whether there is a positive number or negative number under the radical. In the case of a positive, we have two real roots. In the case of a negative, we have two imaginary / complex roots. If we have 0, then we have a single root that is repeated. ((b + 0) / (2a))

ParthKohli
 3 years ago
Best ResponseYou've already chosen the best response.0Actually, the discriminant is just \(b^2  4ac\).
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