Question

9¹²·(-3⁸):[(-9³)²·81]²·[(-5³+2²)⁵]⁰

Answer 1

$9^{12}$ · (-$3^{8}$ ) : ( (-$9^{6}$ ) · 9² ) ² · [-125 + 4) $^{5}$ ] $^{0}$
   Cum orice numar la puterea 0 este egal cu 1
= $9^{12}$ · ($( -3^{8} )$ : $9^{16}$ · 1
= $9^{12}$ · $9^{6}$ : $9^{16}$
= $9^{18}$ : $9^{16}$
= $9^{2}$
= 81