What is the value of the dicriminant -7x^2+2x-4=0
how many real solutions if any?
\[-7x^2 + 2x -4 = 0 \]
The discriminant is given by: \[b^2 - 4ac > 0\]
\[ax^2 + bx + c = 0\]
Can you match up a, b and c with the coefficients of your equation?
how many real solutions?
i or 2 or 2 imaginary
2
You will retrieve 2 distinct real roots
@QRAwarrior discriminant is just \(b^2 - 4ac\) ^_^ the > 0 thingies are used to find how many roots the equation has..the question is asking for the value of the discriminant
Oops
No but he asked how many roots
As well
oh..i just looked at the main question lol..carry on
@lgbasallote Would you mind helping me with my question after? I think I gave the open poster sufficient amounts of help
can u give me the final answer?
I'm terrible at math I think someone else can really help you i'm so so sorry =-(
Sure
\[-7x^2 + 2x -4 = 0, then\] b = 2, a = -7, c = -4 Now, can you work out the discriminant? All you have to do is sub in the values into the following equation:
b^2 - 4ac
Join our real-time social learning platform and learn together with your friends!