Răspuns :

Răspuns:

Explicație pas cu pas:

6y^2+2=8

6y^2=6

y^2=1

y= radical din 1

y=1

[tex]6y^2+2=8 \\6y^2+2-8=0 (a=6; b=2; c=-8)\\\\[/tex]

Δ=[tex]b^2-4ac[/tex]=[tex]2^2+192=4+192=[/tex]196

[tex]x_{1;2}[/tex]=[tex]\frac{b+-\sqrt{delta} }{2a}[/tex]=[tex]\frac{2+-\sqrt{196}}{12}\\[/tex]

[tex]x_{1} =\frac{2+14}{12} =\frac{16}{12} =\frac{4}{3} \\\\x_{2}=\frac{2-14}{12} =\frac{-12}{12} =-1[/tex]

S = { -1; [tex]\frac{4}{3}[/tex] }