Question

-x(elevado a 2) +10x=0
urgente!!!

Answer 1

-x(2)+10x=0
delta= 10(2)-4.-1.0
delta= 100+0
delta =100
x=-10+ou-raiz de 100/2.-1
x= -10+ou-10/-2
x1= -10+10/-2 = 0
x2= -10-10/-2= -10 

Answer 2

Olá Caah!

-x²+10x=0

-x(x-10)=0

-x=0
x-10=0

x'=0
x''=10

Bons estudos...