Question

a) - 7 elevado 2 =

b ) ( - 7 ) 2 =
c ) 2 elevado 4 =
d ) ( - 2 ) 4 =
e ) ( - 3 ) 4 ) =
f ) - 3 elevado 4 =

Answer 1

Olá boa noite!

$a) \: { - 7}^{2} = ( -7) \times ( - 7) = 49$
$b) { (- 7})^{2} = 49$
$c) \: {2}^{4} = 2 \times 2 \times 2 \times 2 = 16$
$d) \: ( - 2) ^{4} = 16$
$e) \: ( - 3)^{4} = 3 \times 3 \times 3 \times 3 = 81$
$f) { - 3}^{4} = 81$