Question

Calcule as potências: a) 5³ b) (-7)^3 c) 6² d) (2/3)^5 e) (-4)³ f) (0,4)^3 g) (-5)^4 h) (5/3)^4

ME AJUDA POR FAVOR

Answer 1

a) 5³ = 5•5•5 = 125

b) (-7)³ = (-7)•(-7)•(-7) = -343

c) 6² = 6•6 = 36

$d) {( \frac{2}{3} )}^{5} = \frac{2}{3} \times \frac{2}{3} \times \frac{2}{3} \times \frac{2}{3} \times \frac{2}{3} = \frac{32}{243}$

e) -4³ = (-4)•(-4)•(-4) = -64

f) 0,4³ = 0,4•0,4•0,4 = 0,064

g) (-5)⁴ = (-5)•(-5)•(-5)•(-5) = 625

$h) { (\frac{5}{3} })^{4} = \frac{5}{3} \times \frac{5}{3} \times \frac{5}{3} \times \frac{5}{3} = \frac{625}{81}$