Răspuns :
x²=4/25
x²-2/5=0
(x-2/5)(x+2/5)=0
x-2/5=0⇒x=2/5
x+2/5⇒x=-2/5
S={-2/5,2/5}
sper ca te.am ajutat!
x²-2/5=0
(x-2/5)(x+2/5)=0
x-2/5=0⇒x=2/5
x+2/5⇒x=-2/5
S={-2/5,2/5}
sper ca te.am ajutat!
x²=4/25
x²=0,16
x²=16/100
x=√16/100
x=4/10=0,4
Sper ca te-am ajutat!
x²=0,16
x²=16/100
x=√16/100
x=4/10=0,4
Sper ca te-am ajutat!