Se la funzione \( g \) è tale che \( g\left(\frac{x}{2}\right)=x(x-1)+3 \), qual è l'espressione di \( g(2 x) \) ? E quanto valgono \( g(2) \) e \( g(3) \) ? E quanto vale \( g\left(\frac{2}{3}\right) \) ?

\( \begin{array}{l}\text { Ecuaciones Hultipicat } \\ \frac{9 x+3}{6}\end{array}=2 \)

\( 3z^{3}<9x \)

Simplify the expression. Assume that the variable is unrestricted and use absolute value symbols when necessary. \[ \sqrt{25 y^{6}} \]

Simplify each expression. Assume that the variables represent any real numbers. Use the absolute value button only when necessary. (a) \( \sqrt{y^{16}}=\square \) (b) \( \sqrt{x^{18}}=\square \)

Simplify the expression. Assume that the variable is unrestricted and use absolute value symbols when necessary. \[ \sqrt{y^{2}-2 y+1} \]