The roots of the equation 2x^2-mx+n sum to 6 and multiply to 10. What is the value of M+n?
2x^2 - mx + n
The sum of the roots is given by
m / 2 = 6 multiply both sides by 2
m = 12
The product of the roots is given by
n/2 = 10 multiply both sides by 2
n = 20
So....
m + n = 12 + 20 = 32
EDIT TO CORRECT AN ERROR.....
Actually, I think that it is n/2 = 20?
Thanks, Cphill for the help though, I couldn't figure M at first.