\(\text{a},=\left(-1584\right):4-\left[126-9.\left(-8\right)\right]=\left(-396\right)-\left(126+72\right)=\left(-396\right)-198=-594\)
Lời giải:
$(-1584):(-2)^2-[126-(-3^2).(-2)^3]$
$=-1584:4-[126-(-9).(-8)]=-396-(126-72)=-396-54=-(396+54)=-450$
-1584 : (-2)2 - [126 - (-3)2.(-2)3]
= -1584 : 4 - [126 - 9. (-8)]
= -396 - (126 + 72)
= -396 - 198 = -594
a)= (−1584):4−[126−9.(−8)]
= (−396)−(126+72)
= (−396)−198
=−594.