Question

(5⁻¹)⁻² . (2⁴ . 5⁷) : (2².5²)³

AJUDA !!

Answer 1

(5^-1)^-2= 25

2^4=16

5^7=78125

2^2= 4

(5^2)^3=15625

25*(16*78125):(4*15625)

25*(1250000):(62500)

31250000:62500

R.: 500