$1/$
$- 8 - ( -3 ) ^ 3 . 125$
$=-8-9.125$
$=-8-1125$
$=-1133$
$2/$
$a,|x-3 | + 10 = 18$
$⇔ |x-3| = 8$
⇔\(\left[ \begin{array}{l}x-3=8\\x-3=-8\end{array} \right.\)
⇔ \(\left[ \begin{array}{l}x=11\\x=-5\end{array} \right.\)
$Vậy$ $x={11;-5}$
$b/$
$3- ( 17 - x ) = 289 - ( 36 + 289 )$
$⇔3-17+x=289-36+289$
$⇔-14+x=-36$
$⇔x=-36+14$
$⇔x=-22$
$Vậy$ $x=-22$