Question

calcule as potências a) (+2²) b) (+3²) c)(-2²) d)(-5²) e) (-3³) ​

Answer 1

a) (+2²)  

$\left(+2^2\right)=4$

b) (+3²)

$\left(+3^2\right)=9$

c)(-2²)

$\left(-2^2\right)=-4$

d)(-5²)

$\left(-5^2\right)=-25$

e) (-3³) ​

$\left(-3^3\right)=-27$

Espero Ter Ajudado!