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#1 2013-02-15 16:13:02
- cooljackiec
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- Registered: 2012-12-13
- Posts: 186
math
The roots of the quadratic equation x^2 + ax + b are 2 + 3i and 2 - 3i. What is a + b?
I see you have graph paper.
You must be plotting something
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#2 2013-02-15 16:34:36
- {7/3}
- Member
- Registered: 2013-02-11
- Posts: 210
Re: math
If a polynomial's leading coefficient is 1 and one of it's root is r then (x-r) is a factor of the polynomial,can you solve the problem now?
There are 10 kinds of people in the world,people who understand binary and people who don't.
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#3 2013-02-15 17:39:52
- cooljackiec
- Member
- Registered: 2012-12-13
- Posts: 186
Re: math
Thanks
I see you have graph paper.
You must be plotting something
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#4 2013-02-15 18:36:14
- {7/3}
- Member
- Registered: 2013-02-11
- Posts: 210
Re: math
You're welcome
There are 10 kinds of people in the world,people who understand binary and people who don't.
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