Question

Questão 4 Agora, indique o valor de: a) (–5)2 b) –5 2 c) (–9)2 d) –9 2

Answer 1

a)

${( - 5)}^{2} = ( - 5) \times ( - 5) = 25$

b)

$- {5}^{2} = - 25$

c)

${( - 9)}^{2} = ( - 9) \times ( - 9) = 81$

d)

$- {9}^{2} = - 81$