Question

esse 8 era pra ser pequeno mas nn deu [(–3)8 e esse 5 tbm (–3)5]
[(–3)8:(–3)²]².[(–3)¹º:(–3)5]

Answer 1

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$[(-3)^8:(-3)^2]^2.[(-3)^{10}:(-3)^5]=$

$[(-3)^{8-2]^2.[(-3)^{10-5}=$

$[(-3)^6]^2.(-3)^5=$

$(-3)^{12}.(-3)^5=(-3)^{12+5}=(-3)^{17}$