Question

a (+4)²=
b (-4 )²=
d (-9 )¹=​

Answer 1

→ Cálculo :

A) ( + 4 )² = ( + 4) · ( + 4) = +16

B) ( - 4 )² = ( - 4 ) · ( - 4 ) = +16

D) ( - 9 )¹ = -9

Answer 2

Olá ! (^_-)

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$\sf \large {a)( + 4) {}^{2} = ( + 4) \cdot( + 4) = { \boxed{ \red{ + 16}}} }$

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$\sf \large {b)( - 4) {}^{2} = ( - 4) \cdot( - 4) = { \boxed{ \red{ + 16}}} }$

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$\sf \large {c)( - 9) {}^{1} = { \boxed{ \red{ - 9}}} }$

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Espero ter ajudado! ❤️