Question

 2x(x-5)=0

2)         x(x+3)=0

3)            x(x-1)=0 

Answer 1

1) 2x(x-5)=0

2x = 0
x = 0/2
x = 0

(x - 5) = 0
x - 5 = 0
x = + 5

S[0 , 5]



2)  x(x+3)=0
x = 0

(x + 3) = 0
x + 3 = 0
x =  - 3

S[- 3 , 0]




3) x(x-1)=0
x = 0

(x - 1) = 0
x - 1 = 0
x = + 1

S[0 , 1]

Answer 2

1) $2x(x-5) = 0\\\\ 2x^2-10x=0\\\\ 2x(x-5) = 0\\\\ 2x = 0\\\\\ \boxed{x=0}\\\\ x-5=0\\\\ \boxed{x=5}$

2) $x(x+3) = 0\\\\ x^2+3x = 0\\\\ x(x+3) = 0\\\\ \boxed{x=0}\\\\\ x+3 = 0\\\\ \boxed{x=-3}$

3)$x(x-1)=0\\\\ x^2-x = 0\\\\ x(x-1) = 0\\\\ \boxed{x=0}\\\\ \boxed{x=1}$