Question

5x2= -10x me ajudem pfvrrrr

Answer 1

Resposta:

5x² = - 10x

5x² + 10x = 0

5x*(x + 2) = 0

5x = 0

x = 0/5

x' = 0

(x + 2) = 0

x + 2 = 0

x" = - 2

S = {- 2 ; 0}