Question

Me ajudem pfv
Calcule o valor das expressões:
A) (2³•3²-6²) ÷ [18÷(15-3•2²]²
B)2³•3 v49

Answer 1

Resposta:

A) 1

B) 168

Explicação passo-a-passo:

A)

$(2^{3}.3^{2}-6^{2})/[18/(15-3.2^{2})]^{2}\\(8.9-36)/[18/(15-3.4)]^{2} \\(72-36)/[18/(15-12)]^{2}\\36/[18/3]^{2}\\36/6^{2}\\36/36\\1$

B)

$2^{3}.3.\sqrt{49} \\8.3.7\\24.7\\168$