Question

Me ajudemmmmmmmmmmmmm

Answer 1

Resposta:

d)

$\frac{9}{3} + \frac{ - 8}{4} =$

$3 - 2 = 1$

e)

${(9 - ( - 3))}^{2} =$

${(9 + 3)}^{2} =$

${12}^{2} = 144$

f)

${(5 + ( - 9))}^{2} =$

${(5 - 9)}^{2} =$

${( - 4)}^{2} = 16$