Zadaci:$$ $$ a) $$ 6 X + 12 x^2 + 5x - 3 = 0$$ b) $$ 4x^2 - 6 x + 9 = 0$$ c) $$x^2 + 4x + 4 6 X^{2} - \frac{ x - 9 }{\ x ^{2}+ 10 x-3}= -{ 7\over \sqrt{x^5}}+ x - 34 0$$ d) $$3x^2 - 6x + 2 = 6 $$ e) $$ 6 X^{2}-\frac{1}{ 6 } X^{3} = 0 $$ f) $$ f(x) = { 6 x^{-3/ 6 }} \implies {dy \over dx} $$ g) $$ \binom{21}{x}\sum_{x}^{x+12} ( X+2X - 14 ) $$ h) $$ X^{3} - 14 X - 14 + 6 X^{2}-\frac{1}{ 6 } Y^{2} = 0 $$ i) $$ 12 \cdot x^{3} - \frac{x^{2}- 6 \cdot x+3}{x^{2}-1}+4 = 12 $$