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# MEI FP1 Algebra Watch

1. I'm having trouble with a question I've been given. The question is:
The equation has a root at . The sum of the roots is 6 and the product of the roots is -10. Find , and .

I found and using and and I got and .

I can't work out how to get the value of but I'm sure it uses both and but can't see how it works.
2. (Original post by Gumskull4)
I'm having trouble with a question I've been given. The question is:
The equation has a root at . The sum of the roots is 6 and the product of the roots is -10. Find , and .

I found and using and and I got and .

I can't work out how to get the value of but I'm sure it uses both and but can't see how it works.
You'll kick yourself.

If is a root then , you know and so just sub them in and solve for .
3. (Original post by Zacken)
You'll kick yourself.

If is a root then , you know and so just sub them in and solve for .
*Sigh*
The complex maths makes me forget the simple maths... Thank you!!
4. (Original post by Gumskull4)
*Sigh*
The complex maths makes me forget the simple maths... Thank you!!
Not to worry! You did the hard bit. :-)

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