Question

sabendo que a soma das raizes da equaçao 2x²+(2m-2).x+1=0 e 3 calcule m

Answer 1

2x²+(2m-2)·x+1=0

2(3)²+(2m-2)·3+1=0

2·9+6m-6+1=0

18+6m-6+1=0

6m+18-6+1=0

6m=-18+6-1

6m=-13

m=$\frac{-13}{6}$

m=2,166