solve the matlab cource question and write it for me as matlab lanquage or send it as an matlab file if you can please

Question $15$

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a$)$ Find the roots of the following polynomial:

$A(t)=5t^5+7t^4+2t^2-6t+10$

b$)$ Calculate the $3^{rd}$ derivative with respect to $x$ of the function:

$\frac{tan(yx)+2x+e^{xt}}{y}$

c$)$ Solve the following linear system:

$2+2y+2z=0$

$-2x+5y+3z=1$

$8x+y+5z-5t=-1$

$x+y+z=-t$

d$)$ Calculate the value of $x$ :

$x=\frac{ac}{(b)}+\frac{\sqrt[\phantom{2}]{a}b}{c}+e^{3c}+\frac{a+b}{\sqrt[\phantom{2}]{3c}}$

With $a=1\mathrm{.}5,b=2$ and $c=4$