Applicare la formula: $\frac{a}{b}c$$=\frac{ca}{b}$, dove $a=4$, $b=3$, $c=3$, $a/b=\frac{4}{3}$ e $ca/b=3\cdot \left(\frac{4}{3}\right)x$

Applicare la formula: $\frac{a}{b}c$$=\frac{ca}{b}$, dove $a=4$, $b=3$, $c=3$, $a/b=\frac{4}{3}$ e $ca/b=3\cdot \left(\frac{4}{3}\right)x$

Applicare la formula: $\left(a+b\right)\left(a+c\right)$$=a^2-b^2$, dove $a=4x$, $b=2$, $c=-2$, $a+c=4x+2$ e $a+b=4x-2$

Applicare la formula: $\left(ab\right)^n$$=a^nb^n$