Question

cine ma poate ajuta :))

Answer 1

a)

2⁵×2⁷:2¹⁰= 2¹²:2¹⁰= 2²= 4

b)

(5²)⁴:5⁷×5= 5⁸:5⁷×5= 5×5= 25

c)

(2/5)²⁷:(2/5)²⁵×(2/5)^(-3)= (2/5)²×(2/5)^(-3)= (2/5)^(-1)= 5/2

d)

[(5/4)⁴]³:[(5/4)³]⁴×5/4= (5/4)¹²:(5/4)¹²×5/4= (5/4)⁰×5/4= 5/4

e)

(-3,5)¹⁷:(-3,5)¹⁵×(-3,5)= (-3,5)²×(-3,5)= (-3,5)³

f)

(3/2)^(-34):(3/2)^(-32)×3/2= (3/2)^(-2)×3/2= (3/2)^(-1)= 2/3

g)

[(2/3)⁷×(5/7)³]:[(2/3)⁷:(5/7)²]=

= ((2/3)⁷×(5/7)³)/((2/3)⁷×(7/5)²)

= (5/7)³/(7/5)²= (5/7)³:(7/5)²= (5/7)³:(5/7)^(-2)

= (5/7)⁵