The roots of the equation 2x^2-mx+n sum to 6 and multiply to 10. What is the value of M+n?

Creeperhissboom Mar 26, 2018

#1**+1 **

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.....

CPhill Mar 26, 2018

#3**0 **

Actually, I think that it is n/2 = 20?

Thanks, Cphill for the help though, I couldn't figure M at first.

Creeperhissboom Mar 26, 2018