Question

решите уравнение 2x^2+6x=0

Answer 1

2x^2+6x=0

2x(x+3)=0

2x=0

x=0

 

x+3=0

x=-3

Answer 2

2x^2 +6x =0

x(2x+6)=0

x=0           или            2x+6=0

                                     2x=-6

                                     x=-3

 

Ответ : x=0 или x=-3