Question

Me ajudem a responder essas equações por favor

Answer 1

a) x(x+5)=0
x1=0
x2= -5

b) x(3x+5)=0
3x=-5
x2= -5/3
x1=0

c) 7x²+14x=0
x(7x+14)=0
7x=-14
x=-14/7
x2= -2
x1=0

d) x(-2x+10)=0
-2x=-10
x= -10/-2
x2= +5
x1=0

e)x(x+1)=0
x2= -1
x1=0