i dont understand this question:

in the quadratic equation x²+mx+2=0, the roots are consecutive. find the values of m.

i dont understand the part of the consecutive roots

Printable View

- Sep 2nd 2009, 01:58 AMpogiphilipsums and products of roots
i dont understand this question:

in the quadratic equation x²+mx+2=0, the roots are consecutive. find the values of m.

i dont understand the part of the consecutive roots - Sep 2nd 2009, 02:25 AMred_dog
The roots are and

Then

Solve the second equation, find a, then replace a in the first equation and find m. - Sep 2nd 2009, 02:31 AMpogiphilip
thanks for your help but i havent leant that so could you explain to me how that works?

- Sep 2nd 2009, 02:40 AMynj
- Sep 2nd 2009, 02:47 AMpogiphilip
i still dont understand what that is ynj

- Sep 2nd 2009, 03:03 AMynj
- Sep 2nd 2009, 03:08 AMpogiphilip
but also the question says to use roots that are consecutive?, and i don't know vieta's theorem.

- Sep 2nd 2009, 03:10 AMynj
- Sep 2nd 2009, 03:40 AMpogiphilip
thank you for your help and i think i figured it out. thanks ynj and red_dog

- Sep 2nd 2009, 03:47 AMpogiphilip
also what are the roots if the two roots are consecutive?

- Sep 2nd 2009, 10:32 AMynj