a)
(\sqrt2+2)x-3=2\sqrt2
L=(\sqrt2+2)*\sqrt2-3=2+2\sqrt2-3=2\sqrt2-1
L\ne P
B.
\sqrt2x-\sqrt2=0
L=\sqrt2*\sqrt2-\sqrt2=2-\sqrt2
L\neq P
C.
\frac{2}{\sqrt3}=\frac{2x}{\sqrt6}
proporcja - mnożę “na krzyż”
2\sqrt6=2\sqrt3x
2\sqrt6=2\sqrt3*\sqrt2
2\sqrt6=2\sqrt6
L=P
D.
\frac{1-\sqrt2x}{\sqrt2}+x=\sqrt2
\frac{1-\sqrt2*\sqrt2}{\sqrt2}+\sqrt2=\sqrt2/*\sqrt2
1-2+2=\sqrt2
1\ne\sqrt2
odpowiedź C