Applicare la formula: $a+\frac{b}{c}$$=\frac{b+ac}{c}$, dove $a=4x^5$, $b=2x^2$, $c=8x^3+9$, $a+b/c=4x^5+\frac{2x^2}{8x^3+9}$ e $b/c=\frac{2x^2}{8x^3+9}$

Applicare la formula: $x\left(a+b\right)$$=xa+xb$, dove $a=8x^3$, $b=9$, $x=2$ e $a+b=8x^3+9$

Applicare la formula: $x\left(a+b\right)$$=xa+xb$, dove $a=16x^3$, $b=18$ e $a+b=16x^3+18$

Applicare la formula: $x\left(a+b\right)$$=xa+xb$, dove $a=16xx^3$, $b=18x$ e $a+b=16xx^3+18x$

Applicare la formula: $x\left(a+b\right)$$=xa+xb$, dove $a=16x^2x^3$, $b=18x^2$ e $a+b=16x^2x^3+18x^2$