Matematika A - 2013. jesen, 11.

A. $\frac{2-x}{3}+\frac{1}{2}=2x\backslash frac\{2-x\}\{3\}+\backslash frac\{1\}\{2\}=2\; x$

B. $5^{x-3}=0.25^\{x-3\}=0.2$

C. ${\log }_{2}x=-3\backslash log\; \_\{2\}\; x=-3$

D. $(x-5{)}^2=0(x-5)^\{2\}=0$