Question

-x²+12x=0 resposta completa​

Answer 1

-x²+12x=0

12x = x²

12x = x.x

12 = x

ou

-x²+12x=0

12x-x²=0

x.(12-x) =0

x = 0

ou

12-x = 0

12 = x

Answer 2

- x² + 12x = 0

x • ( - x + 12) = 0

x= 0

- x + 12 = 0

- x = - 12 (-1)

x= 12

S= ( 0 , 12)