Question

resolver ecuacion x2+9x= -4x

Answer 1

x² + 9x = -4x

x² + 9x + 4x = 0

x² + 13x = 0

x(x+13) = 0

x = 0       x + 13 = 0

x = 0       x =  -13

CS = (-13; 0)

Eternamente axllxa