Răspuns :
[tex] \sqrt{49} = 7
\sqrt{100} = 10
\sqrt{9} = 3 [/tex]
Deci :
7 · x = 10 - 3
7 · x = 7
x = 7 : 7
x = 1
\sqrt{100} = 10
\sqrt{9} = 3 [/tex]
Deci :
7 · x = 10 - 3
7 · x = 7
x = 7 : 7
x = 1