Question

o valor de m na equacao 12x-mx-1=0 de modo que a soma das raizes dessa equacao seja 5/6

Answer 1

12x²-mx-1=0

a=12
b=-m
c=-1

$S=- \frac{b}{a} \\ \\ \frac{5}{6} = \frac{m}{12 } \\ \\ 6m=5.12 \\ 6m=60 \\ m=60\div6 \\ m=10$