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## #1 2013-02-15 16:13:02

cooljackiec
Member
Registered: 2012-12-13
Posts: 185

### 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: 185

### 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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