Question

x+kx+k-1=0 ,a soma das raizes seja igual a 2

Answer 1

$Soma~das~raizes= \frac{-b}{a} \\ \\ b = k \\ \\ a = 1 \\ \\ \\ \\ \frac{-k}{1} =2 \\ \\ -k=2 \\ \\ k = -2$