Zadatak 1820

Test: MPsIIBTIII_310

 

N Reši jednačine:

a) $$\log_2(x-1)+\log_2(x+2)=2$$

b) $$5\log_{\frac{x}{9}}x+\log_{\frac{9}{x}}x^3+8\log_{9x^2}x^2=2$$

c) $$x^{\log x}=16(6x^{\log \sqrt{x}}+25)$$