Question

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Answer 1

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Answer 2

Resposta:

b) [(2/5)⁻³]²

(2/5)⁻³ˣ²

(2/5)⁻⁶

(5/2)⁶

c) [(3/7)⁻⁴]⁻²

(3/7)⁻⁴ˣ⁻²

(3/7)⁸

d) (-1/2)² x (-1/2)⁻³

(-1/2)²-³

(-1/2)^-1

(2/1)^1

2

e) [(-4/7)³]⁵

(-4/7)³ˣ⁵

(-4/7)¹⁵

f) (-3/4)⁴ x (-2/3)³ x (-2/3)⁻²

(-3/4)⁴ x (-2/3)³⁻²

(-3/4)⁴ x (-2/3)¹

(81/256) x (-2/3)

-162/768 = -81/384 = -27/128

g) (3/7)⁵ ÷ (3/7)¹¹

(3/7)⁵⁻¹¹

(3/7)⁻⁶