Question

me ajudem por favor ​

Answer 1

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

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

$c)( - 7) {}^{2} = ( - 7) \times ( - 7) = \boxed{ 49}$

$d) - 7 {}^{2} = - 7 \times 7 = \boxed{ - 49}$

$e)( - 1) {}^{4} = ( - 1) \times ( - 1) \times ( - 1) \times ( - 1) = \boxed{ 1}$

$f) - 1 {}^{4} = - 1 \times 1 \times 1 \times 1 = \boxed{ - 1}$

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Att, IzabelaCristina2006 ❤️ ♈