130

$D\left(u\left(s\left(x\right)\right)\right)=u'\left(s\left(x\right)\right)s'\left(x\right)$

$D\left(3x+1\right)^5$
$u\left(x\right)=x^5$
$u'\left(x\right)=5x^4$
$s\left(x\right)=3x+1$
$s'\left(x\right)=3$

$D\left(3x+1\right)^5=5\left(3x+1\right)^4\cdot3=15\left(3x+1\right)^4$

$D\left(x^3-2x\right)^{10}$
$u\left(x\right)=x^{10}$
$u'\left(x\right)=10x^9$
$s\left(x\right)=x^3-2x$
$s'\left(x\right)=3x^2-2$
$D\left(x^3-2x\right)^{10}=10\left(x^3-2x\right)^9\left(3x^2-2\right)$