Applicare la formula: $x\left(a+b\right)$$=xa+xb$, dove $a=4x^my$, $b=-\frac{3}{4}$, $x=4x^my+\frac{2}{5}$ e $a+b=4x^my-\frac{3}{4}$

Applicare la formula: $x\left(a+b\right)$$=xa+xb$, dove $a=4x^my$, $b=\frac{2}{5}$, $x=4x^my$ e $a+b=4x^my+\frac{2}{5}$

Applicare la formula: $x\left(a+b\right)$$=xa+xb$, dove $a=4x^my$, $b=\frac{2}{5}$, $x=-\frac{3}{4}$ e $a+b=4x^my+\frac{2}{5}$

Combinazione di termini simili $\frac{8}{5}x^my$ e $-3x^my$

Applicare la formula: $\frac{a}{b}\frac{c}{f}$$=\frac{ac}{bf}$, dove $a=-3$, $b=4$, $c=2$, $a/b=-\frac{3}{4}$, $f=5$, $c/f=\frac{2}{5}$ e $a/bc/f=-\frac{3}{4}\cdot \frac{2}{5}$