Question

6y²+2 = 8 (Vă rog frumos)​

Answer 1

Răspuns:

Explicație pas cu pas:

6y^2+2=8

6y^2=6

y^2=1

y= radical din 1

y=1

Answer 2

$6y^2+2=8 \\6y^2+2-8=0 (a=6; b=2; c=-8)$

Δ=$b^2-4ac$=$2^2+192=4+192=$196

$x_{1;2}$=$\frac{b+-\sqrt{delta} }{2a}$=$\frac{2+-\sqrt{196}}{12}$

$x_{1} =\frac{2+14}{12} =\frac{16}{12} =\frac{4}{3} \\\\x_{2}=\frac{2-14}{12} =\frac{-12}{12} =-1$

S = { -1; $\frac{4}{3}$ }