Question

Preciso urgente por favor!!!

Answer 1

Resposta e Explicação passo a passo:

$A-B=\left[\begin{array}{cc}-5&8&\\76&3&\\\end{array}\right]-\left[\begin{array}{cc}0&2&\\-86&54&\\\end{array}\right]=\left[\begin{array}{cc}-5-0&8-2&\\76-(-86)&3-54&\\\end{array}\right]=\left[\begin{array}{cc}-5&6&\\162&-51&\\\end{array}\right]$