Question

Hallar el valor de k en la ecuacion x2+(2k+5)x+k=0

Answer 1

x2+(2k+5)x+k=0
x2+2xk+5x+k=0
x2+5x = - 2xk - k
x2+5x = k(- 2x - 1)
(x2+5x) / (- 2x - 1)= k