Question

URGENTE!!!!




a) 25/4
b) -42/6
c) -25
d) 17
e) 2/8

Answer 1

Explicação passo-a-passo:

2-¹ + 6.(2/3)-² - (-1/3)-¹=

1/2 + 6 . (3/2)² - ( - 3/1)¹=

1/2 + 6 . 9/4 - ( - 3)=

1/2 + 54/4 +3=

2 + 54 + 12

__________=

4

68/4=

68÷4=

17