Question

-2x²+10x=0 ajudem por favor

Answer 1

-2 x² + 10 x = 0
2 x(-1x + 5 ) = 0
2 x = 0
x = 0/2
x = 0
-1 x + 5 = 0
-1 x = - 5
x = -5/-1
x = 5
S = {0 ; 5 }