Question

A complete sentence explaining which method of solving would be best used based on the value of the discriminant.

First Discriminant = 12.2i

Answer 1

@SolomonZelman @Compassionate @juanpabloJR @nincompoop @ganeshie8 @texaschic101

Answer 2

If you could help me through this that would be great!! Thank you

Answer 3

I don't know what to do?

Answer 4

@precal @paki @mathmale @Compassionate @Nurali

Answer 5

12.2i

sorry

Answer 6

A complete sentence explaining which method of solving would be best used based on the value of the discriminant.

First Discriminant = 12.2i

Aiden: Hello! Note that the discriminant is never 12.2 i. No discriminant contains 'i'. Try again, please? Clarify what you want to know.

Answer 7

\[\sqrt{-9.55^2-4(-1.91)(-7.64)}\]

\[\sqrt{-91.2025-58.3696}\]

\[\sqrt{-149.5721}\]

That's my math....

Answer 8

@mathmale

Answer 9

OK. Notice you have no 'i' here yet.
Your radical can be re-written as\[\sqrt{(-1)(149.9721)}\] which, in turn, can be re-written as \[\sqrt{-1}*\sqrt{\sqrt{?}} \sqrt{149.9721}=i \sqrt{149.9721}.\]
Ayden, are you able to identify the "discriminant" in this example?

Answer 10

Hint: Look under the radical sign in \[\sqrt{-149.5721}\] What you see UNDER the radical is your "discriminant."

Answer 11

so my discriminant is -149.5721

Answer 12

Your job, Ayden, is to explain how to write the solutions to the quadratic equation whose discriminant is -149.5721. The question you've posted is not worded very clearly (which is, of course, not your fault).

Answer 13

Yes, Ayden, your discriminant is -149.5721. OpenStudy was down, which is why this response on my part is coming so late.

Answer 14

I have to get off my computer, but will be on OpenStudy again later today. Best wishes to you.