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

cooljackiec
Member
Registered: 2012-12-13
Posts: 162

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
lol

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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: 162

Re: math

Thanks


I see you have graph paper.
You must be plotting something
lol

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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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