Evaluate the expression \( -2\left|x^{2}-13\right|+14 \) when \( x=-3 \) \( \begin{array}{l}-30 \\ 6 \\ 58 \\ 22\end{array} \)

381 Indica i trinomi di grado complessivo 6 e gra- do 4 rispetto alla variabile \( b \). \( \square-5 a^{2} b^{4} c+2 a^{3} b^{3}+a b^{5} c^{2} \) \( \square 2 a^{3} b c-\frac{1}{2} a b^{4} c+3 a^{2} b^{3}+1 \) \( \square-6 a^{2} b^{3} c+4 a^{2} b^{4}-a^{3} b^{2} \) \( \square 8 a b c^{3}-7 a^{2} b^{2} c^{3}+5 b^{4} c \)

\( \square a x^{4}+10 a^{2} x^{3}-2 a^{3} x^{2}+\frac{a^{4}}{} \) Indica quale polinomio è ordinato secondo le potenze crescenti della variabile \( x \). \( \square 3 a x^{2}+6 a^{2} x^{3}-7 x^{5}+5 a^{3} x^{4} \) \( \square x^{5}-5 x^{4}+4 x^{3}+3 x^{2} \) \( \square-7 x^{2} y^{3}+\frac{1}{3} x^{3}-2 x y^{4}+\frac{1}{2} x^{4} y \) \( \square-2 x z^{3}+6 x^{2} z^{2}-\frac{3}{4} x^{3}+x^{4} z \)

If \( h(x) = 2^{x-3} + 1 \), determine the expression for its inverse.

Simplify the following i) \( \frac{x+5+\frac{4}{x}}{\frac{1-7}{x}+\frac{12}{x^{2}}} \) ii) \( \frac{x+5+\frac{4}{x}}{1-\frac{7}{x}+\frac{12}{x^{2}}} \)

Solve: \( \frac{3}{4}(5 x-4)=\frac{1}{2}(4 x+3) \)